Maybe it's with you being different sexes?
My sister and I fought like cats till we both got married. Now we're the best of pals.
She and her husband have loads of money, but he has it all locked away in investments and they only run one car. He says they don't need a second one and admittedly she has the car almost any time she wants it. He's a lovely man, and i look on him as my own brother, but he's tight as a drum.
They can't go abroad due to his having a health condition, and he is in and out of clinics and hospitals a lot.
Their house cost less than mine but they have done much the same improvements as I'm doing to mine now, and they are both very, very supportive; and interested in what I'm doing
When they die their two boys are going to get a HUGE windfall, they are lovely boys too and their families, and I don't envy any of them a thing. My kids won't get anything like that. I don't think it bothers them either.
All I would have liked is that one of my two wonderful husbands had survived to enjoy old age with me.
So just let him have his money - you have much more. You have US!!!