Ignore the person completely. Cut them off, and no matter how bad you want to talk to them, don't give in. It'll only make it worse. Be optimistic, but also realistic. This person will most likely not matter in three or four months anyway. Distract yourself with other things as much as possible, and try your hardest to stay away from anything that makes you think of her. But I agreee with the majority, just get out, time will bring you happiness.