They say you are just like the friends you keep so you didn't do anything wrong. If you went out to a spot where she has been around a few trips to men are going to look at you the same way they look at her because you are friends with her. If the friendship means alot to you then tell her about herself and let her know why it is that you don't want to be around her best of luck.
You become friends with those you trust, that you feel comfortable with and you care about. If you start to dislike a friend for a particular reason that just won't change then its better to let them be and find new friends. Like they say show me your friends and I will show you who you are.
I don't really know your friend, so I can't tell you if you were right or wrong about her being a whore.
If you considered her a friend then in my opinion you should have offered her your counsel, support, love, friendship but it sounds like you judged her choice which isn't what a friend is suppose to do to another friend. There is only one who can judge another and it isn't you or I.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.