My (30m) wife (35f) found out our SIL (37f) is cheating on my wife’s brother (41m) with a guy from crossfit. We’re all on holiday together with the kids for another day and a half, what the fuck do we do now?
Tl;dr, in the title, basically. Not my relationship, but its a fucking mess, as you can imagine. Basically, my wife went for a jog with her and another friend yesterday morning, and she was sitting…