Guy friend trouble.. help!!?

Ok. So this is a long story, but it's most likely going to keep your interest.. So. I have a guy friend, we used to send dirty messages, like, saying what we wanted to do with each other and stuff. But we were always good friends, and I had earned his trust in many, many ways. Our friendship dates back until like a year ago, when we first met. Well, anyways I'm in love with him. He said he was once in love with me too but he didn't want to date me because it'd cause drama. Then, one day, he told me he wasn't actually in--love with me. But, even know I was really sad about it, we kept our good friendship. Then, he tells me he likes me, ya know, more than a friend, but he wasn't in love with me, like I am with him. Well, a couple of days ago me and other friend were spending the night at our friends house. I was talking about him, and then one of my friends said that they heard that he was dating someone. I was so upset, especially because I loved him. I texted him and asked him if it was true, and his reply was all nonchalant to which he said "yes ma'am..we just started dating :)" I was so upset, I was about to cry. I blew up his phone saying stuff like "Wow. And after all we've been through.. And you weren't even going to tell me either." And he was saying sorry, and that he felt like **** and he knows this is all gonna come back and bite him in the ***, so then I just stopped texting him. The next day, I felt like **** for blowing up on him, I mean, he can date whoever he wants right? So I texted him saying I was sorry for acting like a complete ***** and stuff. He said that I had every right to be mad.. i denied it (even though I knew it was true). I asked him what she ad that I didn't, and he said nothing. Then I asked him why he wouldn't date me then. And he said I don't know, we just clicked. (referring to his girlfriend, of course.) And blah blah blah until I tell him that it's either all, or nothing. I told him that if he picked all, we wouldn't have to date each other, just go back to normal. And then I said that nothing, refers to his girlfriend. He understood right away, and he picked nothing. I was so upset, crying that whole night that I would never be able to talk to him again. I went a day without talking to him before I finally broke telling him I didn't mean what I said, that we had been through to much just to throw it all away. So I just excepted the fact that he had a girlfriend. I'm his girlfriends friend on Facebook, and she chatted me yesterday. She was asking me stuff like, "Do you still like him?" And stuff like that. She also said she wouldn't be mad if I did, and she just wanted to know. I lied and said I didn't. Well, we kinda started to become friends. She started telling me stuff like, I don't think he loves me, and he gets on my nerves and stuff. She never told me I couldn't tell him... So I went on Facebook and I did (Stupid move). He got all upset because he was saying he was in love with her, and he can't believe she doesn't think that he did. He said he was going to confront her about it, but I said not to mention my name. He said okay. (By the way this girl gets crazy jealous). Well he said something to her about it, and she denied it. I was like, wow. So she texts me being like "OMG YOUR TALKING TO MY BOYFRIEND!?!" And stuff like that. We got into a big fight and the truth just poured out of my mouth. Saying that her boyfriend and I did sext each other, and other **** like that. He goes on Facebook and tells me to stop feeding her a line of bullshit.. even though I was speaking nothing but the truth. And I told him I was telling the truth too. And he sure as hell knew it. Well anyway, he kept denying everything, so no matter what I said, he would believe her, and she'd believe him. Even though I was the ONLY one telling the truth. They both said stuff like, your tearing us apart! and other gay **** thats not true. I told them that that's what usually ends relationships, the truth. I told his girlfriend I was still in love with him. Her reply was, "Oh, thats cool ? :) because he's my boyfriend, and HE loves ME, not you" and stuff like that. And she also said that he called me a skank. I was so upset so I texted him saying that he knows I was telling the truth, and that he just doesn't want to believe it. I told him if he called me a skank one more time that **** would go down. He did. I was crying my ******* eyes out, and he didn't even care. This girlfriend of his that he hasn't known half as long as me, won him over. Now they both hate me, and I still love him, and he loves her. I'm broken. What do I do!