[He isn't certain at all... He wants to trust her, but it's not that easy, either. She is, after all, the same person who hurt a particular two who are both very dear to Setsuna.
Despite that, he can't keep on ignoring her as well. It's a tight position to be in.]
I will... see for myself. If she can change as well.
[He really wishes to fulfill mutual understanding. It doesn't matter who or what they are.]