Happy Belated Birthday. ((HUGS)) Sorry about what you are going through. Even if your boyfriend is not into birthdays, he is being insensitive since he should care about your own feelings....he failed to do that in this situation. It's also alarming that he did not apologize. Have there been other situations where he has demonstrated insensitive behavior and no apology? Even if this is the first time he acted that way, definitely do not ignore this warning sign. Hopefully he'll come to his senses, apologize, and make a change. If he is not willing to do that, then you have to ask yourself if you want to be in a relationship with someone who is not respecting your feelings.