Dreams

This morning I woke up with a gasp and my heart racing and pissed off. All from a dream. I dreamt that it was New Years Eve and for some reason I was drunk and alone and ended up at my exes house. I slept on the floor, because I didn't want to sleep with him in his bed. And he slept on the couch. The next morning I woke up to him hugging me and rolling me over to kiss me. It felt so good, so nice, so safe. He was fully dressed and said "You better give me a New Years kiss". So I did. Then he said he had to go. "Where are you going?" I asked. He said "To church!" WHAT? He's Jewish, he doesn't go to synagogue, let alone church. He said "Yea, Angie's been bugging me about it and you know how she is, and if I don't go..." Angie is his co-worker, my former co-worker. I got PISSED. I started to say "So, you'll go to church-" and then I stopped myself. I realized it wasn't worth fighting about. He was my ex, and so obviously not worth it. I wanted to say "You'll go to church with Angie, but not with me for Easter, or to Christmas dinner at my parent's house?"
But then I woke up, with the gasp and heart racing and anger. Still too much anger and resentment towards him. I don't like it. I don't want it. What do I do about it?