my boyfriend ditched me on NYE for a party... ADVICE PLEASE

My boyfriend sucks. He ditched me on New Years eye to go to a party with his friends... First time I ever questioned his love for me. I know it sounds dramatic but.. If you think about it, he is so selfish. Before agreeing to going out he could've asked what I was doing.. my plans.. etc. or even hung out with me for a little bit before the party if he wanted to go out SO BAD. And even if I wasn't doing anything, he couldn't just lay up to spend nye w me?? I'm so simple to make happy. Literally. I don't ask for ANYTHING. ever. And the one time I ask for a New Year's <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> Kiss at 12.. he ditches me for a party.. Sometimes I even question why he's in a relationship with me when he primarily ONLY thinks of himself. no joke. He never spoils me, only shops for himself (literally took me shopping with him to pick out clothes & shoes for himself). And he makes me pay or go halfies on most of our dates.. that we rarely go on.. I'm seriously questioning my relationship right now.