Marriage in Trouble

I am a total sucker for marriage in trouble trope in romance books. I have read a few of them and cried my eyes out at most of them. It has to have a lot of yearning, grovelling and pining. Cheating is a big turn off for me. Some books I freaking loved were Unwanted Wife by Natasha Anders, Kiss An Angel by Susan Elizabeth Phillips AND The Divorce by Nicole Strycharz.

I wouldn't mind a book like The Prenup by Lauren Layne at all.