dating/boyfriend problem

Megan
So basically about a year ago I started a new job at a pool as a lifeguard. At this time I had a boyfriend for about five months now and I've just met a new guy who I started to grow feelings for. I broke up with my boyfriend for this new guy i met at my job and he gets mad at everything EVERYTHING I do. I just don't get it like I like this guy a lot but it seems to be that no matter what I say it just always makes him angry. Is there a way to fix this isn't something I'm doing or should I just try to get over him. We've been going on dates for almost a year now and i've even slept over his house but everytime I bring up the word boyfriend he changes the conversation or just stops talking to me. PLEASE EXPLAIN THIS TO ME