@subliminal
I don’t really know how to word it, but it’s like she doesn’t have a strong bond with him. It’s apparent that he cares for her more than she does him. If it were her sister in the previous life, she seems like the sort that would do anything for her, but she estranges herself from her half brother.
Poor choice of words, but that’s the impression I’ve gotten so far. She cares for him, but not enough to prevent him from his own demise. I think she’ll eventually get there, acknowledging and loving him like family instead of someone she has to runaway from. So I what I really mean is treating him more like family.