Make other plans. If he can't be bothered to answer in a timely manner, you
have your answer.
Go out with friends. You might actually meet another cute guy while you're
out. You never know.
Happy Birthday.

If you just met, that's too "relationship-like" and probably scared him off. Birthdays and holidays shouldn't be shared unless or until you've become exclusive.

Hmmm, I'm going to approach this from a different angle (I'm a bit of a romantic). If a woman that I'd recently met asked me to take her out on her birthday, I would be flattered, not offended or troubled. It would be a chance to knock it out of the ballpark as far as a first date impression goes. So don't second guess yourself for the birthday invite, I don't really think that it's relevant. It is, however, not polite to string a woman along knowing that she probably won't be able to make alternate plans in time. So I'm leaning towards flake. Happy Birthday

Make other plans. This is where women don't get the message. When I'm into a girl I don't miss q chance to date her.

Geesh...when he didn't answer for two days...that should have been a clue...

Move on. He's NOT into you.

I would not ask someone for a first date for my birthday. He might feel a bit overwhelmed and rushed. He might think that he hardly knows you and would I be expected to bring a gift? A cake? Is her friends and family coming? A little to intimate for a first date. It sounds like his reply was trying to let you down easy. I would just forget about it and have fun by yourself.

Happy birthday ? Agree with others go for a drive or a hike somewhere you feel you deserve to be and unavailable if/when he manages to get away from the wife.

HAPPY BIRTHDAY ????......Fuck him! That's just mean.

First off don't make plans with a guy you just met for your birthday. Did you tell him it's your birthday? If you did he's probably ghosting you because of that. He should have the balls to tell you but most people don't so there's no surprise.

Secondly if you didn't tell him it's your birthday he may just be busy. Odds are he's avoiding you because you two aren't a good match but it happens. Move on to the next and see if it goes better. If he wants to talk he'll reach out.

I may not be the person to give advice or take advice from but I give it two goes. One to say hey and what not and another to make sure they got the first. If nothing moves forward from there, I’m done wasting my time. Anyway, whatever happens I hope you have a great birthday.

If he wants you in his life he will make the effort. SEE him for the POS he was.

Happy Birthday. The first response/non-response is the true indicator of interest. Make your plans and enjoy your day and don't accept lame excuses, you are worth more than that. Take care and have lots of fun and laughter on your special day.

I can't really be the ONLY one who might think hitting someone new (who you've not gone out with, yet) with something as intimate as your burthday celebration might have felt a bit caged, can I? I wonder, had you asked him to join you in a casual cup of coffee, if things might have gone differently. He might have thought that you were fishing for gifts.

With the "limp" response, that would have been it for me. I'd have made my plans & he could go hang.

Don't get me wrong, if he'd have come back later with a warmer response, great, these are my plans, if he wanted in, he could come along.

I used to be accommodating to men because thats how I was raised. Then, I grew up & embraced the following (my own personal credo may not duit others):

I am not hurting for sex partners. I can catch a dick any time I please. I'm looking for more. If he isn't, the door swings both ways.

What he has to pay for, I can give away for free.

I'm living life & not apologizing for doing it, on my own terms. Being part of a couple does not, in any way, increase my personal value. Nor does being alone decrease my value.

When my feet hit the floor every morning, if there were a devil, i'd want him cringing & whining, "she's up".

I've been told men like to be needed. I'd hope that the men in my life understand I do need them, just not to rescue me or pay my bills or anything else of that nature. If I need help, I ask. I need them to be a friend & companion, not my own personal banker...we'll negotiate everything else.

Happy birthday! It's your day, make it about you.

He seems (to me) like an insensitive shit, I would move on. Do something you love and don't give him another thought.

Never chase a guy. It'll only end in frustration for both parties.

His loss! No need hanging around for him. Grab or friend or it with yourself as company. Go on a walk, to a museum, movie, or whatever you enjoy. Know that you are awesome and happy birthday!

Happy birthday!

FLUSH the toilet and visualize him swirling down the drain.

Make other plans, enjoy your birthday... Your joy needs to exist independent of the actions of others. Sounds like at this point if he is interested he knows how to contact you and if he’s not your better off.

You're wasting your time with this dude move on

At this point he seems to have missed his chance, I would say do something for yourself, and Happy Birthday

Don't let him steal your happiness, it's your birthday!! Enjoy it to the fullest, it's his loss!

Enjoy your birthday. Happy birthday by the way.

Let em go