Aw, sweetie. I've been there. Totally understand. This guy isn't worth it. About a year ago, I got back together with someone who I thought loved me and I loved him. We had broken up after we lived together for a little while and I thought he was the one. We had fun, but we had our issues. After a month about 2 days after Christmas, his ex-GF (mother of his kids who he had been separated from for 7 years and he SAID she was the devil) called him and claimed she got beat up by her husband. He cancels his plans with me and tells me that he needs to be there for the mother of his kids. I told him call me and I will help out too if I can. 10pm rolls by and I think "Hmm, that's weird. He never called." I called him and he blew me off. I texted him a few times "What's up? What's going on?" and I got ignored. I started to figure out that my gut was right. The next morning, he tells me I need to leave him alone, because he needs to be there for his kids. A few hours later, he moves her into his house and tells me she wants to work it out and he was breaking it off. I was so incredibly crushed. I was truly devastated.
He called me a month later to tell me she was cheating on him and going out at night. I tried to be there for him, because I loved him and ironically knew how it felt because of him, but he ruined it. Now, a year later, I realize he was just playing me as a backup girl. I should have listened to my gut, but I'm now better off. I'm so much happier now, and it took a while but I realize that I was in love with someone who didn't give a shit about me.
I'm telling you this, so first you know that you're not alone. It really hurts, and lots of us understand what you're going through. Especially when you think the guy/girl is special, but your existence isn't defined by some guy. And the pain will go away. Take some time for you and think of you for a while. I'm sure you're a great girl, and he just isn't right for you. You shouldn't let someone who doesn't care about you bring you down to this level. There are SO MANY men out there who will love you and won't treat you poorly.
I know it's not easy to hear it, but time does heal. I promise you. Just hang on and do something for YOU.