Am I over exaggerating everything?

3 weeks ago my boyfriend of 2 years left to go to Florida to stay with his friends for a month. This first night he went to the club with his friend and a girl he cheated on me with. I Broke up with him .. You see 2 months ago I found out he was cheating the entire two years. Anyways, I didn't talk to him for two weeks. He was trying really hard so yday I took him back. He's already being a d*ck. He told me he was going to the store with 3 girls and his sister and I just asked why, and he freake out on me. So I hung the phone up and he texted me calling me a pu$$y WTF? He called me when he got back from the store and I let it go bc he said I took it the wrong way and I'm being unreasonable. Then he says he's gonna go shower n go to that girls house bc his friend is there, I told him no he can't. Why would he even ask? And he got mad and said he only has 5 more days to see his friends, and that I'm bein unreasonable and taking it all the wrong way. I starte crying so hard and he's still going. Why does he keep blaming everything on me saying "you're taking it the wrong way" advice?