"get you to bed on th' instant. I will be returned forthwith. Dismiss your attendent there. Look't be done."
Othello seems calm and yet in control over Desdemona.
This quote is connected to the larger plan because he is tellin desdemona to go and be alone and he was talkin to Iago earlier about strangaling her.
-why does Othello want Desdemona to be alone?
-what thoughts do you think are running threw his head?