I shouldnt have read this, for the most part because I went through a split in april, a 2 year relationship down the drain. It was the best relationship I had since i was a teenager, and i honestly thought it was 'the one'. Anyways, it went long distance about a year in, and we were really close, then just little things didnt add up, i wouldnt hear from her as much during the day, she was doing 'other stuff'.
Turned out she was hooking up with other guys i didnt know about. 3 times this happened. In the end she dropped me for some guy. That ended up falling face first after a few weeks, she then ended up in the mental ward of the hospital after not eating for 3 weeks, diagnosed with anorexia. Since then i havent spoken to her in over 3 months, but mutual friends of ours tell me often that she'll have break downs and stuff, mostly because of something that reminds her of me.
Best thing i did was walk away, not speak to her, not answer any calls, sms's, anything. I burried myself in my work, kept busy and got on with my life.
Best of luck, hope you work it out smoothly
