Do u know manhwas similar to this?

Maybe try Unintentional Love Story. It has a similar plot as in the main character gets close to the love interest because of their profession. They unintentionally fall in love, but has a fallout once the love interest discovered the main character approached him with ulterior motive.

Iva already read it (it was so good) but thank u

Semantic Error is pretty similar, especially character-wise !