What should I do? :/?

So..yeah. A few monthes ago, my friend Sydney, asked me to hang with her friends at the park. They were 2 kids in my grade that I didn't really know, Chris, & Kayla, so we ended up all having a lot of fun and becoming good friends. Kayla ended up being on of my bestfriends. And so the next day chris started texting me, and he told me he liked me, and that I was cute, and stuff, and so then we fell in "love" or whatever. And we'd talk on the phone, and he'd sing to me with his guitar, and I fell hard for him. 2 weeks later, he asks me out. So we went out, and a week into the relationship, we meet up in the park again and we went into the forest alone. We were hugging, and i felt so much love for him. Then he asked me to kiss him, nd I've never kissed anyone, I've been waiting for the right one. And I thought he was it, so I really didn't know what to do, I kinda just puckered my lips, and he came closer with his lips, and I backed out, cause I'm stupid. And so then finally I kissed him, and it turned out horrible. I didn't like it. 3 days later, he breaks up with me. Why? Cause apparently I was a bad kisser. We stopped talking for a while. It was really upseting to me..his seat was close to mine in math. We didn't talk or anything, it was really awkward. But I felt like he'd stare at me, and creep on me. So then like a few weeks later, he texts me..and he appologized. He told me the song "now that were done" by metrostation reminded me of him. And so then we kept talking, and I guess he became my bestfriend. And yet, I never stopped loving him. But there was one thing that bothered me, everything was perfect except the fact he was a man whore, he's been through sooo many girls. And after a week or 2, he gets bored of them and just dumps them, horrible right? I'd always have to deal with him talking about how he's in love with this girl, and that girl. And it just hurt a lot cause I wished he loved me, and so I guess the good thing about being his bestfriend was that he would always break up with girls, and then just stop talking to them, but then I'd always be there. But I just wish there was a way I could make him mine forever, but it would 't work. I guess I'm just not good enough,. But anyways, we were working on a math project together at his house, and he kinda grabbed me, and started hugging me, and it was hugging like be loved me..and he told me I was adorable. And I told him I never stopped loving him. And then he told me he really wanted me to kiss him, but I said no cause I was scared what happened last time would happen again. But them I thought,**** it. Nd I made out with him. It felt really good. He said it started out sloppy, but then I got good, and he liked it a lot. Then we started making out on his bed for like 20 mins, and he felt me up, and I felt so much love for him. I would never makeout with anyone else, or even want to. But then the next few days we were texting a lot, and it was all we could talk about. Nd he'd act like he was dating me, and I'd hug him, and them he told me, he really wanted to have sex with me, and I kinda didn't want to, I mean were to young, but I just told him yeah sure maybe someday. Or something like that. Nd then day, I guess be was really Horney or something (lol) and he texted me and be was like I really wanna do you. That's when I told him that i'd only do him, if we were far into a relationship, and I was sure he actually loved me. That's when he told me he was really sorry, I asked him why? And he told me he didn't actually love me like that. He just loved what he thought we Were gonna do, and he loved making out with me, and he said sorry, and stuff and we still can be bestfriends and I told him yeah sure whatever, and my heart broke, now he's onto some other chick, and it feels like he doesn't even care, he hasn't texted me or called me in days, and even before we madeout he'd call me like everyday and text me ocasiomally and now it feels like he doesn't care he hurt me, and I'm just so upset about it. I've cried really hard, and almost cut myself, but I'm trying really hard not to. But what should I do? Should I ignore him, or just pretend I'm not hurt, or what? I love him too much to stop being his bestfriend and we promised eachother we'd be bestfriends forever, no matter what.