I'm one of the good guys! is an article in Resident Evil Recollections. It was uploaded on 1 February 2016.
Rebecca doesn't want to work with Billy near the start of Resident Evil, and gos off investigating on her own.
Sure enough, she comes very close to being killed by an enormous group of leeches.
And who should save her but Billy, the very guy who blew her off just minutes earlier!
After deftly rescuing her with his incredible shooting skills, there's no way for Rebecca to turn down his offer any longer.
I have to say as a Rebecca fan he handles things a little too roughly for my tastes, although I guess she looks none the worse for wear.