I think a post-nup when there’s evidence of infidelity SHOULD hold in this case because an affair has gone beyond “matters of the home.” Too many states hold the argument that adultery shouldn’t matter because “what goes on in the bedroom should be a private matter” – well, sorry, an adulterous person and spouse have a CONTRACT. The betrayed spouse and the other party Do Not. So unless the third party gets pulled into the divorce proceedings AND held accountable as part of the “matters of the home” I think this short-sighted and wrong.