MENTAL BREAKDOWN!

Okay…My best friend and i discuss how we are only friends and nothing more can result form me and him. And that I love someone else. He knows that. But tonight, he asked me to go take a drive with him to talk about some problems he was having at home. Obviously, i went. We talked for about an hour, when he leaned over and kiss me. I must have been blind because i didn’t see it coming at all. I pushed him away adn said I love someone else. Then I drove him home without saying a word. I was crying because i trusted him that he knew what we were and that nothing would happen. I am so mad I never want to see him again EVER! And I then told the guy that means the world to me about it…and he said because i was crying, he thought i was guilty of actually kissing him instead of him kissing me. and so we just talked for about 2 hours and he still only believes me 70%. The thing is…the one i love warned me about the other one. He said that he was not as innocent as he appears to be around me. I didn’t believe him because i thought i knew the real person and he was just trying to talk crap. But it turns out that my love was completely right. And now its a huge mess about whether to believe me or not. He says he loves me but i don’t think he does or he would believe me. I know his view and I could see that I would react the same way if we switched shoes, but i would not do that to him. How can i convince my love I am not like that and i would never do anyhtign to hurt him because he means the world to me?