<human>: I recently started talking to my ex again, about 2 weeks ago. We had been NC for about 2.5 months prior to that. We live in different cities.

Today was my birthday. He saw via my Snapchat stories everything I was doing for it -- multiple dinners, bars out, cake, etc. if you're not familiar with snapchat, you can see who is viewing your "story," aka pictures, videos, etc. depicting your day. 

I talked to him YESTERDAY. Did not mention anything about my bday. He has been initiating contact the entire two weeks we've been talking.

He's been watching my stories ALL DAY LONG and hasn't said ONE WORD. 

This feels incredibly/needlessly mean, as if he's purposely ignoring my birthday. It's very frustrating -- everything is going fine and then has to go and ruin it by doing something stupid.

I am supposed to see him in two weeks when he comes to my city for a business trip, but now I just feel icky, stupid, hurt...

Am I overreacting to this? How do I move forward (or not) from this? Am I missing something about the male psyche that says birthdays are totally unimportant? I don't want to cause YET ANOTHER fight when we were getting back on track.

Can you provide a brief overview of the text?
<bot>: Ex, who I am in contact with again recently, failed to acknowledge my birthday. How do I react to this?