What would you do if your partner cheated with their ex?

i think i know perfectly well the action required by her.....
i f you think....

Fuk naw

I don’t like cheating. The rest is kind of irrelevant for me. Cheating is bad.

Put on a glove, grab them by the throat, and toss them outside. Dude is a field of red flags.

They wouldn't be my partner, they'd be my ex

Regardless of with whom and why and gender and diseases and regrets and morals and promisses of future loyalty and happynes since ever more......
With no fights, no name calling but neither negotiations....
Cheating on either side and the relationship would be over.