Haven't women learned anything from the Kavanaugh hearings? Download a recording app. Turn it on and put it in your shirt pocket. Go up to him and tell him you don't like his attentions and if he keeps it up you'll go to HR or his wife. Record what he says after that. Otherwise, it's he said she said.

Ok when you are hired at this hospital isn’t there a hand book or orientation pretty much like most coed jobs. He usually goes over this stuff with new employees. Sexual harassment is outlined in every handbook company policy’s on posters in break rooms right next the ombudsman poster...... yes anyone? The rules are very clear and he has violated them. It is your choice what do next. If he is truly a friend that crosssd the line. Give a serious what for it simply shout out stop hitting on me around multiple coworkers ... ok maybe not. If you had the talk and do much as catch him staring at you then go to HR and let them handle it. Or go right to HR .... now don’t wait you will want to get it on record. Either way he is going to stop or go away or walk the other way if he sees you.
But do not wait till it happens again and so not be polite or nice about it. You must convey how wrong what he’s doing is. How it makes you feel, and how disgusted you are with him as a married with children husband and father. What would his wife and children think about dad hitting on a woman at work. Go alpha in his ass and if says a word before your through. Just walk away and go straight to HR.

But I’m an asshole like that ....
The rules are clear.... be Brave and shut him down, scare him and repell him with how disgusting he is to you.

Peace, Love and Understanding

   Brain 

Tell him you are interested in getting his dick picture to show his wife how he hangs out at work ! Then call his wife and get her to deal with him !

If he knows that you're currently separated, then he could, consciously or subconsciously, see you as an easy target. You're in one of the most vulnerable places of life right now. He can either respect that and try to be supportive, or try to take advantage of it. Sounds like he's doing the latter. Lot's of good advice in the comments, I agree, report him if it continues.

Based on your description, the creating of tension has been from his end; a transference of his own tension. A person who creates distractions and behaves in a distracted manner in a workplace that is vital to facilitating the good health, if not survival, of others has their priorities skewed.

If his mind isn't on his job 100% it is a weak link in your shared chain. If anything, pointing that out should release tension; enabling better performance and more comfort among one another for work related comaraderie. His creation of tension has worked against that kind of environment. Your good judgment and discomfort with attending the event deprived you and other fellow workers of a valuable opportunity to make your team stronger and your work more pleasurable.

Other than his behavior disclosing that he is immature and troubled, I don't know enough about the rest of his character to make my suggestions a real solution. My thinking if you have a coworker who's professionality you can trust, she/he outght to be told about your situation just as a place of status safe-keeping; someone who might be able to serve later as second party chronological confirmation of your discomfort. If it persists, particularly in the midst of performing care, I'd consider (depending on maturity evaluation) telling him that if it doesn't end entirely and immediately, you'll file a grievance on the basis of patient well-being and workplace harassment. 2. That it wouldn't be received well by most wives. 3. That the slightest hint that he wants to reverse the tension he's created with retaliatory, childish demeanor, you'll proceed with the complaint anyway. 4. That he's created counterproductive tension and that it's his responsibility to make it entirely vanish, 'or else'. (with an o.k? and a big smile...)

It is drastic but people like that sometimes don't get the full message and will resort to 'pay-back' for spoiling their fantasies and unrealistic expectations. If he had any respect for you or himself he wouldn't expect you to receive his base banality as complementary. It isn't the stuff of respectful, professional level friendships.

....you asked for it.

I'm not attacking you. But this culture of putting ourselves (women) last in these matters makes me sick. Please try not to worry about "creating tension"! You did not create it. He did. You are only responding to his actions. None of this is your fault. You may tell me you don't feel it's your fault, but by your very statements, you're automatically feeling responsibilities for HIS BEHAVIOR. Ugh!!!
It's not up to you to make this all nice.....

Be polite but you must set the boundaries. Tell him his behaviour is making you feel uncomfortable and it is totally inappropriate in the workplace. YOU Have done nothing wrong at all but I know this situation still makes us women feel guilty. We women all know how he will react " oh I was only joking. Can't you take a joke?'. Then you say "well lets ask your wife how hilarious she finds it".
Maintain your dignity. He knows he is out of line.

Yikes....worked in the OR for almost 20 years and I've seen plenty of bad behavior. Usually doctors and nurses. Skipped the Christmas parties because we couldn't bring a date and the open bar was a recipe for Monday stories. Harassment was everywhere. Not OK. Today is a different day. My advice...you already told him strait that you are not interested.....F' off....he didn't listen...go to HR. Maybe that we prevent him from harassing a new nurse or tech who is less savvy in negotiating the social minefield we both know the OR often is....

I would just be open n truthful and tell this person in no uncertain terms your beliefs preclude u from any relationship with a married person

For you: document everything that has happened. Be prepared to tell all.
Talk to more than one person about this now.

Be clear: tell him to stop. Do this in front of someone you trust if he does not stop.

To understand him more: An interesting perspective about this: Esther Perel "the state of affairs - rethinking infidelity"
She maintains that the changes in marriage about 100 years ago, and the women's rights changes, haver resulted in insane expectations from having only one significant other. Hence, the number of happily married people exploring new types of relationships.

You don't have to be willing to put up with his unwonted attentions just to work with him. Ask yourself which you would prefer: putting up with his advances for the year(s) to come; or feeling the residual tension if you tell him that you wouldn't go out with him even if he wasn't married. Sometimes a stiff distance is better than a touchy-feely closeness on the job.

You don't need to overreact, and if you do he may well accuse you of misconstruing him being friendly. I think you know what you need to say - in a nice way tell him that there are professional boundaries you would like to stick to and some of his comments have caused you embarrassment. That should probably do it without too much awkwardness. If he ever says he would like to know you better than just as a work colleague, that's your chance to say "Great, how about introducing me to your wife and kids?".

Meet it head on.. tactfully let him know that his behavior makes you uncomfortable..you have every right a work environment of harassment... he is seeing how far he can go with you...let him know if he cannot control his behavior then you will have inform Human Resources of the situation... it’s always best if you have witnesses, but that is not always the case, nonetheless, don’t let this grow and really get out of hand... you know being in the medical profession “ the best cure is prevention “ ... best wishes.....

I think that based upon the information you have given us and the fact that he has not actually done anything yet to justify a sexual harassment complaint it would be wise to put some distance between him and yourself in order to be sure that he is actually trying to hit on you. If it continues then call him out on it and tell him thanks but no thanks, I'm not interested and if he persists then tell him that it will get ugly with a harassment complaint to be filed against him for his actions.

Report him! Everyone has pretty much given you the steps to take. If you don't, he will try his tricks on someone else, and it will be a case of rape.

Tell him you'll kick him where it counts if he does it again. Then do it.

I empathize with you sense of creepy. Any work colleges have comments about him?

How does he figure in with the staff and management?

In general. Start a journal. Record every strange connection. Provide dates, times, references.

Start talking a lot about this great new guy you met, and how you think you are falling for him. Total lie, but he can back off gracefully.

I'd be straight with him, without threatening to escalate it. File a complaint only if he doesn't back off after you've told him.

low rent!

We're all human. We all make mistakes and sometimes take things too far. Sometimes, we're a little overly driven to compensate for things that are lacking in our lives and some may not have a good example to follow. Maybe we're just in a bad place and are making some bad choices because our judgment is impaired.

A couple of good suggestions in the comments. Especially BeccaVa. Some things to consider: How will management respond to a complaint? Who does management favor more: you or him? How have they handled other complaints? Have other complaints been filed for this guy? Also, what's his wife like? Is she a willing participant? Are they swingers? Or would there be hell to if she found out?

Whatever you do, how you respond makes all the difference. Be direct, blunt and assertive to the source of the problem. Not easy or fun, but necessary. If that doesn't work, find out what does and approach it in a strategic, thoughtful and measured manner to resolve the problem quickly and efficiently. I used to get angry when I had to deal with other peoples problems but then I learned I just had to get better at dealing with them because they never go away.

Hope this helps.

I started working for a company that was contracted into another bigger company and we were maintenance as well as the company has their own maintenance group only men and my contracted in company was all women I started working and a man in maintenance saw me and liked what he saw he was singing Hot Pockets as he walked by me every time and I didn't think anything of it every day I worked with these woman I talked about my boyfriend this man continued to try to talk to me and the same as you I thought that he was trying to be friendly and I was trying to be friendly back he started to kind of hit on me and in front of my old co-workers He Slipped me a piece of paper with his Snapchat name on it I stupidly added him and he told me I had a nice phat ass. I told him thank you but I wasn't interested and I went to work the next day and told two of the girls about it and they told me he was married and had three children I didn't know any of that because he had taken his wedding ring off since I had shut him down he he gave me the cold shoulder and acted very butthurt so I thought I was going to be left alone little did I know that hit had very much hurt his ego he continued to sing Hot Pockets while he was around me and I was wearing a pair of workout leggings just like you and the man was walking behind me one day and the locker area and started making butt squishing noises at every step I took I was mortified and decided that myself I would confront him and I did I told him that it was rude and I was embarrassed by him making those comments at me and the I did not deserve to be treated that way he apologized and I walked away from him to my locker he followed me to my locker continuing to try and apologize as a compliance manager overheard all of this and stepped in between us and stopped everything that was happening I spoke to this manager in private and I told him everything that had happened and that I didn't want to create problems with either working environment and that I would not report this incident little did I know that he would be talked to and told to leave me alone a week after he continued making hot pocket comments and then the week after that as I was cleaning the floors he decided to stop the dirt off of his boots before he went into the locked off area of the building I had had enough and decided that I was going to make a report and I was going to tell them everything from the very beginning I was told by this company that there was nothing that they could do they would tell him to leave me alone again and that I could change my entire schedule so I would not be in as much of an area that he would be in but in the end there was nothing that the company could actually do about it please be very cautious of what you do outside of work things can go badly I put in my two weeks and they only let me work two days before they told me that they wouldn't need me anymore I made a mistake and I'm paying for it don't make the same mistakes

@Allikat tell your story, girl

A really good burn. "Your pants are gonna look great when your wife throws them into your yard after I tell her what you just said to me, bitch!"

Just say whats on your mind strait forwardly. You have the impression that he is hitting on you even if it is not what h intends, that you do not want him in your space, not interested in sharing personal information or closeness and tell him to keep an appropriate topic as working associates.