Last year I met a girl online and fell in love with her. We both did and she wanted me to go to Edinburgh for her. I already wanted to go anyway so I applied and everything felt perfect. I was there for her when she went through some bad times and she was there for me when my AS level grades weren't great. It got very soppy and we talked about getting married and having kids, the whole shebang. However, Edinburgh took a long time to reply to me and I guess she gradually lost interest or something. On my 18th birthday, she got drunk and sucked off another guy twice. I was so angry and just told her what I felt. Soon after, I got my reply from Edinburgh saying I had received an offer. I skyped her and she wasn't happy at all. She stopped acting like she loved me and whenever I asked her a question about us she always said "I don't know".
Over the next few months, I tried really hard to rekindle what we had but it just wasnt working. Over easter, she skyped me again (we skyped pretty often) and told me that she had gone behind my back and met someone new. She had slept with him after two weeks of knowing him and they were now in a relationship. At the time (and she knew this) everything was going wrong for me and she knew I was feeling suicidal (as I was when we first met, she changed that but recent events have put me back there). She told me she still wanted to be friends but I was pretty upset. I was already self harming but that night I walked out to a nearby river bank and argued with myself for an hour about whether I should walk in. Obviously I didn't. I went home and because I was still so angry I messaged her a lot and just ranted. I will admit I was horrible and vile. The next day I regretted it and the next two weeks were awkward and now we're not even speaking. Its pretty much over.
The whole thing has left me crushed and I'm devastated over how she left me when I needed her the most, went behind my back and everything I dreamed for is gone. I'm still looking forward to Edinburgh but its just not the same anymore. I just feel really sad and empty over it all. After all we trusted each other with, she said her boyfriend had made her choose between him or me, even though she knows what I'm going through. It's like I was there for her and after all this effort, she got to be happy and I'm just crushed.
I'm just so devastated over it. I don't know what to do and its really affecting my revision. Everything just hurts and I don't know what to do.