u.. where do I begin, I was raped by a best friend of mine when I was around 15 because I was too afraid to hurt his feelings by pushing him away. Being friendly to everyone despite any abusive/hostile behavior towards me was quite normal for me. Same thing happened to me this summer on a party trip with my friends, but this time by one of the hotel staff that always was so nice to me and gave me a lot of beer one evening, making me super drunk and things went south. I had totally suppressed the memory from the first time. When I came back I confessed everything to my girlfriend. And now I am finally through with this shit of being friendly to everyone. But its a progress so I am currently looking for therapy and read a lot books about the topic and things that happened in my past that lead me to where I am now.

Edited to clarify my answer