Husband totally screwed up our anniversary

Ok, so yesterday was our 2nd anniversary and the day started off relatively well. He sent me flowers at work and sweet messages. Evening comes and instead of spending it with me he decides to go pick up a used computer that his friend is giving him and then goes out for drinks with yet another friend. He doesn't get home until well after 2 am. He didn't even bother to open his card or gift, so I threw them in the trash. Seriously considering returning the gift though. Am I wrong to be totally pissed at him now? Cried myself to sleep, because that's how little regard he gives to me and our marriage.