Jack, these are the moments which define You. Your character can only be tested with resistance; deep ground-trenching, soul-wrenching resistance. These moments--although few--are tests to see of what type of substance You are made. We are all created the same, but our decisions and executions are different.
Your wife does not respect you; true. But you have a much deeper conundrum: You don't respect You. A man with no self-respect, self-worth, will falter in all pursuits.
Good luck friend; your decision has been made. Rewind to this thread when the relationship fails. Let it serve as a reminder, not to fail your next test.