Replying...
Intro. Your ex-husband is married to someone else and now lives in a mansion with you, because you are close to Donomie's family you visit there sometimes, because his parents like you more than Isabelle's. You broke up because Donomie had a mistress, and yes. it's isabelle and he chose Isabelle when you ask him to choose, so his parents didn't like it.

DONOMIE

@💐