Byleth doesn't retract her hand, instead wiggling her fingers as if that in itself might compel Sephiroth to take it.

"It's complicated. Sounds like your situation is too. It also sounds a little bit like you're trying to scare me off, but it doesn't bother me. You just said that your mind was broken, and I get it--I've seen that before. You also said that the virus used you to do horrible things. Would you have done those things on your own? If not, let's be friends. We all need as many as we can get in a place like this."