"I'll protect you" Zenitsu x (fem!reader)

Zenitsu is a boy who entered the demon slayer corps with other members including me. We are doing our missions with a boy named Tanjiro and her demon sister Nezuko, and a fierce boar????. She begins to develop feelings for the boy with yellow hair. What will (y/n) do next???? ⚠Warning will have manga spoilers⚠