Well idir_hh had a great idea about Rey having killed her parents. If this is done along the lines of her parents being scumbags who abandoned her then this would fit nicely with Rey Nobody. She killed her crappy parents, blocked the memory, and waited for them to return.
It’s a decent idea (I think I remember it being tossed around awhile ago). It certainly feeds into Rey fearing her dark side-ness. If I remember correctly, there’s a moment where Rey says “He killed my parents.” You could probably swap “he” for “I” and the mouth movement would still fit.