But that is the solution, isn't it? He just has to make her remember. Tell her all the things so that she will know that they are a family.

He nods, the smile returned. "He is my big bro. And you are my mother, and we are a family. We lived together on the planet, and when the other Rey came you adopted his last name and I did too. And you're the head of the household because the treehouse was yours and you're the strongest."