The trick is to encourage him to spend his time with his friends doing whatever they do. If he's getting laid, visiting strippers, etc. that's great, at least he's not bothering you. He's going to get tired of banging you anyway. Then when the pre-nup vests, you take the money and run.

Imagine how insufferable Dilbert dude actually is (was! forgot about this delightful fact). You ask him to pass the salt, he goes into this long tirade in this mocking voice, about how he's the only capable person in the room and all the stupid femoids are too woke to even get their own salt, and if you roll your eyes he will get angry and throw a tantrum.