You know unfaithful men pitting the women they sleep with against each other is shitty

Solidarity between wives and mistresses as in “let’s take this fucker for all we can get” solidarity. Making you compete gives douchefuck the advantage, don’t let him take it, team up and take everything. Gang up on him
Oh and never marry a really rich dude (we’re talking 1% here) for love, only money. Actually I’m getting an idea for a cute heist story about a pair of lesbian SBs doing this to some particularly douchey dude I’d call it “the long con”