A story about a rich couple who hate each other and play mind games to make each other miserable.

I just want to read about rich people making their significant other suffer in subtle ways. I don't really want one abusive partner as much a both people hating each other and keeping up their image in public while waging psychological war at home. Heavy on the mind games and manipulation, rather than fighting.

Something along the lines of Who is Afraid of Virginia Wolf or Gone Girl, but neither of those is exactly it. Just two people who should not be married and are taking it out on each other instead of divorcing.