I would just focus on what you want and what you feel.

It doesn't sound to me as there is much love or respect or Affection or passion or admiration for each other or even honesty and communication in this marriage both ways. It is not just him, you seem to feel just as he does just maybe you aren't as vocal about it. He even purchased house for himself so he is already one foot out of this marriage.

Sounds as marriage of convenience, who fed the dogs who cook who did laundry And who pays for what. That's not enough for marriage to survive and last. Good luck

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