Yep! The let’s be friends line should have been your wake up of what to expect. It seems like you want to give this girl one shot so do that.....ONE SHOT AND ONE SHOT ONLY. Sex happens that one time or it doesn’t, then you decide what to do. Anymore than onetime and no sex then you can go ahead and declare yourself mayor of friendsvilleYou sure of that? Because you're hanging around a girl right now who just fed you the "lets be friends" line hoping for casual sex.
Will see how it goes = orbiting.
Get laid or get out. No in between here.