Hate someone I barely know

Gr

About 2 years ago, I was raped by this guy multiple times over a long period of time. Anyway, I am attending college next month and I went for a tour. I met a group of people I will be in ROTC with. Anyway, there is this guy who looks just like the guy who did that and I can’t stand to look at him. How do I get over this? I have to see him on a daily basis