Her...
Right now, she's in a place with no contact with anyone from her past life, so all she can do is worry and wonder about it. Pathetic, as I said.
The other main character knows a lot more about her past, but he's nowhere in the picture in her life right now, though he will be eventually. While her story is told from one point in time forward, his (for the first part of the story) starts from quite a way back, and the part where she comes in hasn't hit yet.
He's a lot more fun to write.
It could be kinda funny if people had all these weird reactions to her and she had no clue why.