triggers from anything

I was raped two years ago by a friend I thought I could trust and still am trying to decide how to deal with it the right way. I thought i was mostly healed by it because for me the memory would be put outside my brain for awhile and i’d only remember once in a while. the other day a guy I knew was talking to me for a while and starting making out with me. I wanted to but all the sudden I got a flashback and felt the same way I did and made up a story to get out of the room. I don’t know what triggered it but im scared to even make out with guys now because I think a stupid memory will come uo again. Now I can’t get the rape out of my head and visualize it 24/7. i’m afraid this is going to happen every time something happens with a guy