How do i handle this? How do I get over being angry about this?

A coworker and I had a sort of rendez-vous at work. The thing is he is in a long-distance relationship and has not seen his gf in about 3 years since he came here from the Philippines. We were close friends at one point and then I began to develop feelings for him. We went into a small office and I asked him to do what he wanted since we had been flirting via email. He told me to turn around and he started feeling me up to my and placed his fingers underneath my bra and maged my s, it felt nice, but i feel so hurt. I told him that I can't be friends with him anymore since I have feelings for him and that we should keep things professional. He became angry and started slamming books on his desk. Now he ignores me and in a way it is helping me get over him. But at times, I get very angry, last week I got angry that I slammed a book on my desk since I can't shake off my feelings & what happened in that small office since it was the first time a guy touched me like that.