Quote from atomdreamer
Itazura na Kiss
, although I should warn you it takes a long
time for him to start acting compassionate towards her, and also it's permanently unfinished due to the sudden death of the mangaka.
Yeah I heard about that. In this case you could just watch the anime. It has a ending that makes it feel very complete. I felt satisfied with it. I never read the manga and never will because of it being unfinished.