You have every right to be upset. It sounds like when you say you made plans it was solid enough that you were counting on it. If that is the case he is blowing you off, whether he is doing so intentionally or not. I say don't make plans with anyone and break them unless it's an emergency. If I tell you I'll go to the movies with you friday night and you and I agree. I should make every effort to be there. Unless my kids get sick or something else serious comes up I should not break that. Going to a meet up instead of you, justifiably probably feels like a slap in the face and I don't blame you.