sentences:  She idolizes Spider-Man and has a crush on him; she even dates Peter Parker for a time.After a fierce argument with Professor Xavier concerning Peter's secret identity, which his Aunt May had just found out about, Kitty leaves the X-Men and enrolls in Peter's school.Their relationship is strained after their romantic involvement (as superheroes) becomes publicly known, making it impossible for them to date anymore in their civilian identities, and eventually comes to an end when Peter realizes he cannot get over his feelings for Mary Jane.