What to do when your friend is dating someone you don't like?

Well, it depends, do you really dislike this guy? Or are you just trying to express your feeling for how much you actually care about him? This has recently happened to me, my friend is dating this guy, and i don't really like him because they kiss to much. Like really one time they went under water to kiss in a lake! Anyway I really just didn't like him because he didn't like me. Until my friend told me that he actually likes me. But you see thats the point, askyour friend how much she has told about you. I hope it will help you in your situation!