Mental Breakdown in Boyfriends Bathroom

I’m currently in my boyfriends bathroom crying my eyes out because I don’t feel pretty. It’s not that my boyfriend said anything to offend or make me uncomfortable. I just don’t feel the confidence and self love and appreciation that I used to have before we started dating. I think that along he way somewhere I lost myself satisfying him and I lost the meaning of self love and I don’t know how to view myself as a sexy beautiful girl anymore. I also feel the pressure of swim suit season and I just don’t love my body. I never used to be this way. I think I truly got lost in caring for him and making sure he’s happy. And he is.