my relationship now

So I'm in this relationship. He doesn't want me to be on any social media. But yet he's on everything. Today I went on the app I met him on and it said he was on 2 hours prior. I asked him if he was still on yellow and he totally lied to me and said no. He hangs out with so many girls. They always have his phone. He tells me he loves me and that he will never cheat on me. Last night he told me that he used to be a fuckboy before we started talking. What do I do. Go out and tell him what I want. Or just break up with him. I love him. And I like the controlling.