... well, it's probably not entirely too surprising to have an instinct that drives you to want to protect who and what you care about, even if you don't realize that's what it is.

[but she'll shift then - gingerly wrapping her arms around byleth, careful not to nudge her reattached arm]

But you can work through what that means now that you're aware. And I'm here for you too, if you need any help.