Okay, i know most readers hate loving wives type of stories and this is one of the few that has substance and isn't a BTB.
The girl is the only child and daughter of a rich person, got a handsome tutor, got taken advantage of and fell inlove(crush).
The father found out broke the two apart(now this is the reason why the story is cheating).
The girl was sad, rebelled and decided to bed our mc who works for her father.
Long story short, they got married, but the girl's father died of illness, the handsome tutor(gold digger) went after the girl, since you know its really bad to break something off forcefully without seeing its end because it leaves a bitter taste in those involve of what couldve been.
Anyways, when i said substance, i meant there was a significant reason as to how the spouse cheated opposed to the non-sense most story seem to cook up.
I probably spoiled half the story but meh, anyone can tell me the story, i want to find stories of the same author.