Mecha Mote Honey

Taken from Shoujo Manga Maniac:

Whenever she sees a boy of her type, Ai gets excited and reckless. Because of this animal instinct, she hasn’t had a boyfriend for fifteen years. However, Daiki, who is handsomest among students, wants to date her. She thinks that if she missed this chance, no one would be waiting for her any more. Is it her last chance!?

Creator: Shigano Iori
Length: 4 volumes
Scanlation Status: Ongoing
Genre: Shoujo, Romance, Drama