"Well, it was stupid, cruel to Theta, pretty goddamn selfish - considering Meta was using every AI he acquired to kill more agents, and you were a cowardly chickenshit -"

It's a good thing she isn't expecting him to pull his punches, because ha!

"- but it's also not the same as a cheap shot from behind, so at least there's that. You thought that was your ticket to ultimately save him." A pause. "If it was a choice between an AI fragment and a bunch of of dead Freelancers, and one of my sisters, when it's all said and done, I...I don't know for sure that I'd have made a different call. Maybe tried it first and then gunned for the Meta, when they were safe. But in that moment..."

He nods his head back and forth.

"Buuut before you think you've got the moral high ground, if our positions were reversed I still wouldn't have shot you. So."

Still, it's more than he's given her in the past, admitting that maybe she did actually care about her brother.

And by saying "I wouldn't have shot you" now, and "I actually trusted you" during their truce talk, it makes it clear that before her betrayal and what Delta said about North, he'd actually held her in higher regard once than she probably realized.