Guy Advice Please!! ?

I am friends with this guy named "Rick" and I have been for two years now. He asked a mutual friend of ours if I liked him a few months ago and she said no because I didn't tell her And I kept it a secret. Ever since then he has become a player and doesn't treat girls right. Every now and then I see a part of his old self and I want to date him so bad. He and I have a lot of the same likes and dislikes. I don't know what to do. I like him but I don't want to be like his other tramps and be dated until he finds someone else and it will ruin our friendship. Please help!!