The thread for flipping shits (and tables)

So the main avenue people used for organising groups for our final year group project was Facebook for some reason and I sent this guy a message because he needed a programmer that seemed like it could be me, didn't get a response and so joined someone else's team.

Except as it turned out he did reply, on the very same day even, and totally wanted me on his team. Facebook just decided not to display the message until now, an entire week later. I even checked my inbox multiple times prior to today just to make sure, before I was forced to assume he couldn't think of a nice way to say "no".

I know for a fact that everyone ended up getting full groups and everything so he didn't end up assuming I was in and not getting any more programmers but this is still incredibly embarrassing, I don't know whether to send him another message now or just act like nothing ever happened.