Chapter 1: 'Busy man'

It seems as though Bruce Banner has a little pet for himself, named as (y/n) (y/l/n). A pet Tony can't seem to stay away from.

Is it the fact Bruce told the girl to stay away from him? Or his ego and reputation of getting any woman less than two feet away from him, excluding Natasha Ramonoff? Or is it because the young girl can't help but catch Tony's attention with her mysterious personality?