The Doctor stopped his feet at the height of the lift, then slid the other man down his body. When they were eye to eye, he breathed,
"For all the time you've spent on my ship, Jack, not once have you really partnered me. You've not the slightest clue of my potential."
He looked over at what now might as well have been the man between them, and back.
"But, then, you've always been quite cautious to keep those layers of mistrust between us. Haven't you?"
Sending Jack out from him again, he changed the steps of the dance, until Glenn Miller was accompanying a tarantella rather than his native swing. Though he doubted, at the rate they were going, that they could dance out this poison.
The Doctor pulled Jack up into a lift, flipped him up even higher so he landed with his legs on either side of the Doctor's head. After the briefest moment of raised eyebrow eye-contact, he overbalanced Jack and let him down his back to... sit on the floor.
Executing a precise turn, the Doctor stalked over to the real source of his rage and gritted out of almost closed jaws, "Did you think I wouldn't care, Booster? Or just that I wouldn't know?"