You can't mean that. [Of course he blames himself, of course he hates himself.] You didn't die because you're a Templar, Juno didn't give a shit about the sides, only who was most likely to get her out. If you died fighting the Assassins as a Templar, yeah, that was the choice, but in this case, the sides really fucking didn't matter.

Even if you could forgive me for stabbing you to death, which you shouldn't. [That's what he did.] It doesn't change that she did it because of what you meant to me.