A thin line between love and hate

My new years was a little bit shitty cause I found out that my boyfriend was talking some shit about me to my uncle. And on top of that, he came over to my house later on and we hung out for a bit until he tried to hit on my cousin's girlfriend and my uncle flipped out and almost kicked the shit out of him. I'm not sure what to think. He tells me that he wasn't trying to hit on her, he just told her something that was intended for only her to hear. He tells me that he loves me and he would never do that to me. There are times when I believe him and there are times when I think he's lying to me. Either way, if he really does love me like he says he does,....fine. But I don't need a man in my life to make me feel good. If he wants to leave me, that's fine. It's his loss. I can find loads of guys who'll get with me in a heartbeat. Stupid me though, I blow them off so that I can stay with my boyfriend, and for what? Well, he does treat me better than any of my past boyfriends. He always tells me that there's a thin line between love and hate. I couldn't agree more. I love him very much and I care about him more than he knows, but I hate him.