A few weeks later he confessed to raping me at the party while I was drunk. I let it slide. Now that I've been raped thrice, I feel I should become gay. Me and my gay friend have been getting really close. What should I do?
-------------------
You "should become gay"? You don't "become gay". In other words, you don't start out being straight and one day decide to be gay or vice versa. It sounds like you are very confused about your sexua| orientation. Plus, it's quite appalling that you have befriended one of your rapists and become close to him. That man should have been reported to law enforcement!
You're in college. Head to the college counseling center ASAP. Run---don't walk!