Any suggestions?

Me and my boyfriend has been together for 11 months now but he has just been acting different, I am more upset, sad,mad, irritable around him then I am happy, there are times where we are happy again but then after a few days he goes back to being an ass, he won't even let me hang out with friends. Also since the first time we had sex ive had to fake all my orgasms.. I'm just not mentally or sexually happy anymore but I'm so confused on what to do.. any suggestions?