Mate, just be cool about it. A few months ago I moved to the other side of the world to get away from my broken relationship, and although it sort-of worked, I admit it was a drastic thing to do.
I had almost the same friends shit did so daily life was hard. If there was a goings-on one night we had to work out who went out that time - her or me? I hated it so much that I just left and let her have it all. I wouldn't suggest doing what I did, and I wouldn't suggest finding the friends that are on your side and pairing up with them. Try not to see her if you can, and find the friends that really are impartial and hang out with them. Give it some time - it'll take a while but in time you'll be ok
