Answer: Tertius gaudens
Explanation: Tertius gaudens is a Latin term which means “a rejoicing third.” It means that a third party will have benefits when two other people are in some dispute. In other words, tertius gaudens refers to a situation in which one party benefits from a conflict among two others.
He definitely benefit from a conflict among the parents! He might even be able to get the step family out of his life. Lol