Quote Originally Posted by DevotedPaladin View Post
I think the "You've bought me more time than you know" may refer to her being able to see Ed. It may be that part of what makes her situation so dangerous is her sanity slipping and that being able to see her son, to see what she's fighting for or what see can see if she makes it out alive, that see may have more strength to carry on.
I think it's actually more literal than that. She said earlier in the chapter that time was different where she is. Based on the the next line after that and the length of her hair I'm guessing it's faster on her end.