At young age he can already buy houses and boats with cash support himself and his wife and pay her graduate school tuition.

He is either a genius or his family supports him or he works so hard that he is now overwhelmed and tired and losing his mind. The whole story is confusing. You signed papers not reading them, perhaps he didn't want your name on
The house because He is the only one playing for everything but then he shouldn't be married. Sounds like when two of you got married you didint discuss details. You can take student loan now. That is common

I would consider to separate and think of divorce

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