The only fight my DH and I ever have is about his obsession with his business. I call it his mistress. He lives and breathes his work. It is the number one priority and topic of conversation. He is a charming, gregarious and talented person, but it bores me and others silly. He is never home before 8PM, 6 days a week. Sundays are consumed by other obligations. If he could manage it, he'd work Sundays, too.
Last Friday I was ill, and ended up in the ER. He had to leave for about 3 hours to finish a job, I said OK. Then he came back to take me home. Then he left again for 4 hours to do another job.(I know he was working.)It doesn't matter how much he is earning, because he will admit to being much better off than any family he knows. He does have the tendency of creating a "need" now and again, to justify his work habit. I am deliberately thrifty, so as not to contribute to the needs.