These are more some story line issues:
It doesn't make any sense that Janice still becomes enraged at the beach when Jason just massages Danielle's shoulders after they both reconciled already. It would make much more sense if she simply joins them and they have some fun together.
Maybe they can even move to the remote part of the beach together.
It also doesn't make any sense that Steve's car still stands at 17:00 at the school after Rebecca kicked him out of her house.
The same applies to the night scene. Neither does Jason now need to still sneak in nor should she send him home afterwards because Steve might return.