>>211743855There is hardly any mention of sexual shit in the books until maybe the 6th and 7th books. It is very vaguely implied Harry and her did *something* sexual at the end of the 6th book, but until then everyone might as well be sexless. It doesn't move past kissing and maybe fondling.
She is extremely shy because of who Harry is, literally a fangirl. She gets advice from Hermione and was always a bit of a tomboy athlete, and then of course becomes a gigastacy when she goes through puberty. This combined with the tomboy aspects means a lot of guys are into her. Once she can actually speak to Harry he starts to like her, plus she's basically a quidditch jock with a fiery personality but also a hot girl.
Bonnie was really terrible casting.