Trust issues

We've been friends for years. But I came on to him, we had sex. We spent months together, but never made anything official. So I couldn't hold his hand in public, or kiss him. I felt like I was being treated like a side chick. But he said he just wasn't ready for a relationship, he claimed he was getting over his ex. Which I believed because, I was around when he told her he didn't want to be with her. But I see her as Wcw on his Instagram, and his family members says she comes over a lot. He says wants to be with me, then he goes to jail. Writes me a letter explaining how he wanted to hang out, when he gets out. He gets out and Ignores me for awhile. I'm best friends with his sister, so I come over to their house a few days after he gets out of jail. He's with his "friend" that's his ex and said, "what's up." while walking away. Knowing I wanted to chill with him, and actually talk to him, because I missed him. But I get over it, because he says nothing's going on. Then he started telling me he likes me a lot I shouldn't be worried about girls that throw their self on him. But I feel like if they're throwing the pussy, he must be catching it. He says he's going to commit to me, but with all these girls around, he has options. And when we hit a ruff patch, I'm no longer in the category.