Advice

Hello ladies, usually I don’t come on here and talk but this has been on my mind. I’ve been dating my boyfriend for about 4 years. I broke up with him for a year and we got back together and now we live together. He’s done me wrong in the past..he didn’t cheat or anything and neither did I. It just seems like sometimes I’m not attracted to him. He’s the only guy I’ve ever been with sexually, but he’s had different partners before we started dating and after we broke up. I don’t know what it’s like to be intimate with anyone else and I’m not just talking sex. Sometimes I feel like I want a break and sometimes it’s just like I’m trapped. If I even talk to him about a break or something he gets aggressive. I just feel like there’s no outlet. I just feel that maybe there’s more out there in a way but I feel selfish. Advice?