Ughhh. Why'd she have to go and say that? Worst thing is that he knows she honestly probably legitimately would go and investigate herself, if she weren't being so manipulative!

He doesn't want her to disappear like Tyki and Reira.

"Don't. Please." You know it's serious when he's using that word. 9S finishes tying off his visor. "At least two of our members are missing and we don't know where they are."