Can somebody please tell me how to avoid seeing my ex girlfriend?

I broke up with a girl some time ago. I was madly in love with her. Still after at least 6 months since we broke up, i love her so much. But, i haven't saw her for 6 months. She moved to different city. We never talked to each other for six months. But now for our final year project evaluation we have to go to the university tomorrow for the final and last time. I am feeling so anxious and emotional. I don't want to see her. Because i know, once i saw her, i feel so bad and so emotional. Please anyone with the solution. please help me out guys.