Wether you come to terms with them having sex together or not, she's gonna be thinking about it and thinking about asking you to do it again and maybe doing it again without telling you. No matter what she's thinking about licking your friends dick every time she sees him. Time to find a new wifey and make sure she's not eager to deep throat all of your friends and taste test their cum this time. Must be nice for your friends spankbank. They're having a secret conversation with their eye contact every time they meet now. You're almost trapped because you know they're gonna become friends with benefits immediately post breakup. Damn you bought a ring for a top 5% hoeish hoe. 95%+ women would never do that devious degenerate behavior, if she does this imagine what she fantasizes about. You're gonna end up raising this guys kids.