So this is a rant and also a question. My(54) stbxw (48) cheated on me with her AP a month before asking for the divorce. Since I was recovering from surgery I had no choice but to live in the same house for 8 months while she went off every weekend to his place, leaving me with our 2 kids. I moved out in October and our divorce isn’t final for at least another few months. They are only “seeing each other” this entire time so they could still be free to see other people, Which was a BS excuse because all they did was spend every free moment with each other. And if they did see someone else, they agreed to tell about it. (This will be important in a minute) Fast forward to December ‘23 where they had “circumstances” and she didn’t see her AP for a month. During this time she finally decided to jump into the dating pool, texting and talking with several guys, and even going on actual dates. And of course is hiding it from her AP, and even chats with these “dates” while at the AP’s house. AP thinks they are serious about each other. So not only did she cheat on me, she’s also cheating on her AP and just like with me she sees nothing wrong with doing this. She’s full on narcissistic and is deliberately not telling AP anything in case these ‘dates’ don’t work out so she doesn’t lose him.

My question is this: should I tell her AP (in a sneaky way, obviously) that she’s cheating on him? Going on dates while still keeping him as a safety net? Because once he finds out, that will destroy her little dream world where she thinks she can get away with anything and have no consequences.

Yes, it’s pure revenge and just to witness her fall off her castle in the sky into reality would be a glorious train wreck.

Or just let it ride out until she eventually hangs herself and karma slaps her?