Gray's Things

I've previously read a manhua/manhwa/webtoons where the ML wants to divorce the FL cos it was a contract marriage forced by her father and just other issues that the ML has with her family. I don't remember most (any) of the contents and the only thing i remember is the ML sniffing an envelope that had a intimate personal item of hers and uh using it i guess you could say before replying to her.
The only other thing I think i know is that he isn't a blonde ML.
Apologies and thanks in advance.