Search Results: confused by an ex

So basically me and my ex broke up because an ex bestfriend of mine started cat fishing him to get him to cheat but he didn't and then she admitted her actual name Over text. And he thought I had something to do with it so he broke up with me. Recently my ex bestfriend owned up to it being all her and she was testing him without my permission, he believed her. But has not got into contact with me since? I'm really upset and confused because that was the only reason he broke up with me and now it's all cleared up he hasn't said anything to me. Bearing in my mind he deleted me in the heat of the moment of all social media. This morning I was walking home and a truck drives by and I later realized it was his best friends truck, and my ex shouted HEY! Really loud out the window to try and scare me and he was smiling and laughing and I expected to get a fb request or something from him as a sign of reaching out. but he still hasn't spoken to me. Do you think...

My ex boyfriend recently contacted me. Our relationship has been off and on between us. He's acting like he wants to be in a relationship again. He says all this nice stuff and how he really likes me still. But i can't trust him. All over twitter and facebook he's talking to other girls, and liking a lot of girls photos with like nothing on. He's a 19 year old boy that goes out partying a lot. So i don't expect for him to be stay loyal. I haven't seen him for about 2 months. We live about 20 min. away from each other. I have no doubt that if a girl came up to him to kiss or whatever, he would. I think he's using me as an ego boost, or he's using me for now until he gets a girlfriend. I do know that he wants to sleep with me. He is always going on about missing me. And how he wants to see me. But he doesn't care, like i do. He like leads me on getting my hopes up saying all this nice stuff and than the next day on twitter or any social media is talking to other girls saying theyre cute, i dont know what i shoukld do at this point. It hurts really bad and im very confused. If he messages me should i ignore him? By the way, im 17 and i dont do any drugs/ drinking/ partying, like my ex does.