It seems they toned her down real good for the anime. In the manga she's clearly more obsessive psychotic, more murderous. She's really deserves her stalker-chan name in manga. She's really like Narutos Hinata except she's reeeeally open about her feelings. In the anime, she's not so stalker is she? After her intro she's pretty much your typical harem-girl competing for the male lead every change she gets IN THE OPEN.