Yes and no, I work faster to get away from work sooner, but do waste time chatting to the object of my affection, either at work if we work together or by phone

Never occured to me to work any harder. I did worked hard without it so....

I certainly wasn't when I dated somebody that worked at night. When everything was going well, it probably was, but there were times when she got sick where I was not as productive.

I'm much more productive now that my divorce is over. Going through that was distracting.

I was most productive in my career when in the depths of a long, terrible. marriage. My work, my working relationships, and my successes gave me the affirmation and satisfaction which my marriage could not. It was what kept me going.

Yes I am more productive and also a better time manager. I want to spend time with my love. I become more organized and less stressed too. Because I am busy I respect and enjoy time spent together and appreciate time apart .

Generally yes, also less stressed.

Less productive because it distracted me. However if I ever actually went to a long term stable relationship that wasn't in the honeymoon phase and then break up, probably I would do better.

No. I was always in a hurry to get done and go home. Now all I do is work.

No difference. Apparently, I just like to teach, and enjoy interacting with my students..which doesn't depend on whether or not someone else is in my life.
But, in some cases, having someone to contribute to the income/housework/car repairs was helpful in general.

Yes. I just felt happier. All the bullshit didn't matter as much.

No. My productivity has never been reliant upon anything other than myself. Being in or out of a relationship had no effect whatsoever.

I've noticed no difference.

No.