Yes, but on certain decisions, not RP.
Bella liking you depends on you beating up Troy or not (-2), pissing off the cafeteria lady or not (-1), doing well in classes (+2/1 based on if you fail less then 2/4 classes), wearing the dildo helmet when you talk to her in the cafeteria (-1), trying to kiss her when she drives you to school (+1) and peeking on her in the bathroom when you are at her home after your failed date dinner (-1). These have no RP effect except the last one which gives you -1 RP. Bella liking you based on a positive score of these decisions gives you +2 RP vs. -1 RP if she doesn't.