When Your Friend Is Marrying The Wrong Person
You decide to wait; maybe she’ll consult you
Ultimately, you realize that it is just inappropriate to tell her that you don’t think she should marry this guy unless she asks. If they get into a blowout fight and she asks you, “Do you think I’m making a mistake,” then and only then do you get to tell her. Otherwise, if you tell her unprompted, you’ll always be the friend she knows disapproves of her partner.