I mean its 95% fake but it doesnt really make a difference for discussing it as if it was real.

I think it deoends on the relationship between the two and the kind of meeting they had planned. If its a date and grey bailed for an other date, thats really shitty. If it was a casual meetup between friends and grey bailed for a dating opportunity, its not that shitty and green was a bit rude with the follow-up, but again depends on their relationship and how they usually communicate. In any case, the last few messages are completrly overboard.