Kimi wa Pet, Peach Girl Recommendations
One is a shoujo and one is a josei, but they reminded me of each other.
A girl/woman (Momo from Peach Girl / Sumire from Kimi wa Pet) is very annoyed at how others are falsely judging her based on appearances. She is the victim of a lot of unfairness.
She is caught in a love triangle between an immature and perverted guy who fools around all the time (Kairi from PG / Momo from KwP [Hey, another Momo]) who's in love with her, and a very mature guy who she has been in love with for a while (Touji from PG / Hasumi from KwP).