The Attack of the Yandere School Beauty

The woman is strong, yandere, possessive, and dotes on her husband.

Yandere, Possessive, Jealous

Is there any male protagonist who is a demon or villain who changed because of the female protagonist's ears? He didn't like the female protagonist in the early stage, but became extremely possessive in the later stage.

The Yandere Female Protagonist Is Very Possessive of the Male Protagonist, and the Male Protagonist Volunteers to Accompany Her