schneids vs me had dark bet and call on flop and turn...

Howdy y'all. I'm a noob here. Play Canterbury 15/30 reg, online 5-10 6max, sneak up to 30/60 every so often. In one of these instances schneids raises UTG, all fold to me in SB, I 3 bet w/AA, he calls. My table image is tight, and i'm curious as to what schneids table image is of me at this point??

I dark bet flop, he dark calls, I dark bet turn, he dark calls. Cracks me up. At river we're looking at AJx, T, J. I bet, he raises, I 3 bet, he 4 bets, I think for a bit and 5 bet, he calls, I drag pot.

Questions - any hand he could have here besides AJ? I asked if he had TT and he said yes, but who knows. If he six bets, can I even think about going seven? It was hard enough to go to five. What do you think of the dark turn bet after the dark call on the flop, all before the flop had even come out? (although all kinda happened at the same time - so possibly he had a peek of the flop?)

Anyways, interesting hand, Schneids would like to hear your thoughts if you see this post. Thanks!

Bryan