She has lots of male friends, she's never had a boyfriend, but nobody ever told her she might be a lesbian?
She can't ask her to go out with her without leaning over her like some creepy molester?
Overprotective? You're living in Japan. There's no such thing as overprotective.
@Flynn Like I keep saying: Over ninety percent of all yuri manga are blatant low-effort copies of one or two templates. And all of those copies are concerned with one thing only: To make dark-haired female characters look like melancholy, weak basket-cases who need a girl with light hair to save them from their lives and/or to portray those dark-haired girls as sex attributes for male-insert blonde female characters.