Ex has new girlfriend-please help

Basically, had a boyfriend of 4 years, its now ended. And he has a new girlfriend. Worst part is, he's become official with her, about 2 weeks after he was sat in my room crying about the fact he wasn't sure whether he still loved me or not etc, in fact both of us were crying. So as you can imagine, very confused as to his new relationship. Its absolutely devastated me. The awful part is that we both go to the same University, therefore I have the anxiety of knowing I could see him or her, or them both together any time I leave the house. The break up wasn't a bad one, but we were very much on and off for a while after. It was largely due to the fact we'd both been each others first everythings, and thought that maybe we needed to be single for a bit. In hindsight bad idea. I've realised since that the grass wasn't greener, missed him so much and still so in love with him. As you can imagine I feel s*** at the moment, and every single thing that pops up on fb about him sends me into floods of tears. Ive made sure not to speak to him since I found out about his new girlfriend, have deleted him off facebook etc etc. Anyone have any advice for coping with something like this..perhaps someone who's been through something similar? Thanks xxx

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