Nightmare's feed

Girl you need to stop deciding shit on your own. She always jumping to the worse conclusion and hiding. She piss me off sometimes,one minute she cares for them the next it something else, I get that they killed her alot in the past but I want to know is why does she keep repeating the same thing everytime she comes back?! And just a theory but what if he's was the one who keeps giving her a second chance at life that's why his magic is running low and he's getting weaker ?