Aishaa Jee
You are still a bachi, and, have to see a lot of things in life.
There are people who have cheated and repented and are wonderful spouses and parents, there are those who “slipped”, and became fine later. Had they separated, their kids would have missed wonderful parent.
DOn’t try to be a moral police to decide about marriages.
In the end its their spouses call to decide about relationship.