This works both ways, male and female. If a friend of yours was seeing a new partner and had the idea they were, " traditionally " sweet, as in, wholesome in commitment and serious when it comes to intimacy. But you knew their new partner had a rich history of promiscuity and that your friend did not support this. This is not a question of whether having many sexual partners is right or wrong, this is knowing your friend wasn't up for that for his/her personal reasons. This also touches on people who want to " change " all of a sudden and in some ways try to hide their true selves. Have fun with the poll.
25 years ago, i told a friend named mike, that his girlfriend was BIG TIME TROUBLE! i sent him a typed letter about it, at his place of work by ceritefied mail. i did not sign it either, or use my return addresss on it. as far as i know, he never found out i wrote it. he dropped me as a friend (and all his other friends) due to the demands of his wife. he was told to drop his family too; which he did. we i hate to say 'i told you so.' 25 years later he is back. gone through one hell of a nasty diviorce. 25 years of getting the shit beaten out of both himself and his daugther's. his wife was mentally unstable 25 years ago, and she still is today. just because you tell a friend what is going down, that does not mean they will listen... espellely where co-dependence is concern.
I heard of similar scenario before, for instance if a friend of mine was going out with a chick that I knew had the herp I would tell him. He might be to scared to hit it but at least I helped him dodge a bullet.