I see, seems really good. It will be the same guy for both girls? I think that making it the same guy makes for a more personal and interesting conflict, take Eric from Big Brother for example.
Well, when following Grace or Lolly path, a different line of events will happen.
The only link is the MC.
For this next version, only if going for Grace path the MC will face someone that can make it happen.
Grace is not like Eleanor from lop.
She is the typical married woman, with moderated behavior.
The MC acts like the trigger for her future actions.