What is the name of this manga?

its about a girl in her senior year in highschool, and she has a giant crush on her art teacher. he uses her as a model for his paintings (all in lolita clothing, hahaha). she goes to talk to him but sees her best friend kissing him (aparently their engaged or something). she confesses (i forget that part). she then kidnaps him in his own home and ties him up... and things happen. she unties him and he kicks her out. she graduates, then the teacher invites her to an art show, then confesses his love for her and then kissy time... i like the style of the artist and i would like to know the name please :)