Pisses me off

So I decided to go get this anxiety thing that is going to help me deal with it and eventually get over it. Today is the first day I've took the first session. And I felt better already. Then I call my bf to let him know I was coming over and he said he was gonna drink and stuff. So I handled the situation to the best of my controlled ability, and felt fine. Then I get over to him and he's all about just being a royal asshole. I am not going to put up with this behavior. And he says I'm the one having an attitude, my attitude is a result of the way he's treating me. I'm am so pissed off.