My WS had an affair with the co-worker. That didn't end up well, and it didn't end up well for them at home either.

I met the AP and in fact I know of their spouse through a connection but I've never talked to them.

Also my spouse "bestie" is also a habitual and serial cheater and has been cheating on their spouse the entirety of the marriage. That spouse and my spouse like to get together to scheme their latest plans.

So now that we're nearing the date that we sign the decree, I'm wondering... Would any of you go tell the other spouse? Would you tell the AP spouse? Would you tell the bestie spouse? Would you just sit on it and let it eat you alive?

What did you do with the info once you found out? I'm looking for stories that spam the different scenarios that might occur.