Re: Parent not being faithful
As generally asked, generally answered, If either of the parent is died, then it would certainly create no problem. He/she has every right to live his life.
If both are alive and one is being unfaithful, I think, I would talk to him/her privately. Discuss the consequences and warn with the cruel conclusions. I don’t think I might be able to discuss it with the other parent. Its not only embarrassing but also the broken faith that two of them will have on each other for the rest of their lives.
I would never want my parent to avoid me for such a reason due to such an embarrassing situation.