[The mention of him not being prepared for that hits her, and she knows she made a mistake there. Kaname knows she should apologize, but... what would she be apologizing for? For having him do what needed to be done to save Messer? Or for still involving him after he agreed to stay. Nether of those would be sincere, and she doesn't want to lie.]

I'm sorry we ended up in that situation. [This much is true.] But he'd thank you for what you did, given the chance.

[Prompto's tone almost feels like a slap, and Kaname can't keep the hurt out of her voice.]

Then why are you upset with me?