The illness is messing with his head. No, not really - he's just Itachi. As usual, Itachi is completely insane and has absolutely no idea what he's talking about. He is just fucking stupid.
Why is he doing this? What the fuck does he want? His motives are driven by Itachi-logic, which is absurd and stupid and too hard to figure out and Sasuke fucking hates it.]
No.
[Just no. No further explanation needed - everything you said is just no.]