Yes. He just bought a ring and asked her parents for permission. Her parents told her, and ruined the surprise.
If the parents are ruining a surprise like that to their daughter... something tells me they ALL find this man who's with her just a joke. The parents have no respect for this major surprise he wants to give to her, and she has no respect for him because she's cheating on him. This would be an awful marriage for him, I suspect.
It's mortifying because he spent six years with her already.....
So... okay. You need this girl because she's sexy and she brings ladies to you by being by your side. Yet, you feel bad for the dude she's going to marry.
If your friend means a lot to you --- don't tell the guy. But in the future, after they get married, do you think you'll become closer to this guy as a friend? And if so, will you be able to live with the fact that you'll know his wife's dark secret and he doesn't? What if he someday learns it and learns that you knew the secret, too? That sounds awful.
I think what's going on here is that you and this man are in a parallel situation right now --- you both risk losing this woman. You risk losing her as a friend if you tell, he risks losing her if he knows her secret. This may be why you feel like telling him -- you and him are on the same level right now. By admitting to you about what she's doing, your friend is actually testing to see how another man feels about the situation. She is testing to see how it would be like to tell her boyfriend. And maybe she wants to. And if she wants to, then she probably wants to get out of the relationship. I think she probably wants out of the relationship. It just might be hard for her to. And maybe on some level, she really doesn't want to.
The problem is, what happens if you tell the boyfriend? Would he believe you? Would she lie and say it's not true and say you're a liar and stop talking to you and make you feel really bad?
You're best bet really is to dump your friend. Disappear on her. Be mysterious. Don't come around anymore. Make the guy wonder why you left. It will red flag his girlfriend to him. What kind of life is she living if she has people who can't stick with her? You should get out of that mess anyway. If she can do this to her boyfriend whom she's planning to marry, what might she do to YOU? If she can do that to him, she could do much, much worse to you.
If you do go through with dumping your friend, finding a way to tell her boyfriend before he gets married about what she's doing would be kind and generous, even if extremely sad. Even if it all doesn't even go down the right way and he stays with her for some crazy reason. He should know. What if she's being irresponsible and picking up diseases?
I'd dump your friend and tell him.
- Dr. Phil