Please help!!!!!!!! advice needed desperatly!!!!!!!?

Okay heres the problem. i have a very close friend to me, and im not naming any names. but im going to use fake names. Amy is gonna be the girl and Warren is gonna be the guy. Amy told me that she was gonna break up with Warren for another boy named Gary. she said shes in love with Gary, and not with Warren. So she asked for advice. now warren is a close friend, and i fear that hes gonna get hurt again. please help me out!!!!!! she told me not to tell him, but i need to know. do i tell him? or do i just keep my mouth shut and forget it ever happened. please, i really need help. hes a great friend, and i cant even bear to see him hurt again. please help.Please help!!!!!!!! advice needed desperatly!!!!!!!?
keep your mouth shut. When warren approaches you with his misery, be a true friend and comfort him and support him. It won't make his pain any less if you tell him. It will just create drama. Support Amy too. Be a friend to both. Being a friend means loving them thru their difficult times, not trying to control the outcome of it.Please help!!!!!!!! advice needed desperatly!!!!!!!?
Tell him, but do it in a casual way. You could end up losing two friends or just one, depending on how petty they are. Warren should get a chance to save his girl and his heart, before Amy breaks up with him. Then again he might just want to let the little girl go!
I think this is a time where you shouldn't say anything, that is if Amy is your true friend. You don't wanna involve yourself in this drama, do u? Warren is still gonna end up being hurt no matter who tells him first. Basically, it'd be like you're doing her dirty work for her, instead of helping him out, and I don't think she deserves to have this situation be any easier on her. She needs to be mature enough to go to him herself and break it off. Just make sure u be there for him when he calls you afterwards.
tell him if he is a good friend
well honey honesty is the best policy but remember you dont want to look like a snitch either so you must chose who you care for the most but she sounds unfair anyway, so just tell him and ask him not to sell you out cause either way he will be hurt
eith way you will be the bad one your friend shouldnt of put u in the position yell at her