Should i be mad that my boyfriend is changing everything?

Ive been with my boyfriend for almost 6 months, he doesnt like me talking to other guys and i cant hang with them. Okay soo like im only friends with guys, and i ditched them alll for him. & they've been there for me since day one. Theyve never tried to get with me. Bt in his mind they do? & he said i csnt make new friends. Welll last weekend some girl texted him and i told him hes not alowed to talk to other girls. So then last night he tells me that were only 18 and he wants to go to parties, and hang with his friends and talk to his girl friends. We came on the agreement no talking to other girls but he can go to parties just to be there? Not dance/talk to other girls. He changed were hes going to college for me, his facebook (when it was up) had photos of us and everything, BUT his past is terrible! He use to be a huge player, and his dad is a player, & his brother is like a huge slut. So is it wrong for me to be hurt or mad about him going to parties? Should he be allowed to go? Helpp!p!