[ Obito's eyes may darken but Sasuke's stay a stubborn crimson, well aware that the blade in his hand is essentially useless -- any battle between them would start and end with visual prowess. He remembers the condition he'd last seen him in, vividly, but it does little to relax him either. His memory's quite a bit longer than just that.

The obvious allusion to his loss causes him to tense nigh imperceptibly, eyes retaining only veins of red now as he activates the mangekyou as further precaution. ]

I'm still alive and we finished what you started, if you meant to actually phrase any of that as a real question.