Why do I attract these guys?

I have had one real relationship, the guy was sweet at first. Then while visiting his parents house he tried to get me to have sex with him. We hung out, went to McDonalds and he told me he and his girlfriend had sex at his church and the pastor walked in on them. He asked me if I have ever been kinky like that, I said no. He said that's too bad like it was a tragedy. The incident he said happened a month before he met me but she called me telling me it happened the night he asked me out! WTH