Live 40/80. Villain here is too loose preflop, overly aggressive postflop, with a tendency to overvalue his hands. He's not a good player by any means, but has shown the ability to read hands every now and then. He does seem capable of thinking about the game when he's not on tilt. He tilts frequently, but does not seem to be on tilt at the moment. We have previously tangled in a few pots against each other since his seat is the button to my BB. A-high has taken down a couple of these.

He opens on the button, SB folds, and I 3-bet KK from the BB. He calls. Flop is

T 7 7 r

I bet, he calls. Turn is

5

I bet, he raises, I 3-bet, he 4-bets, I ...

Thanks in advance for any comments.

you say he overvalues his hands so this might be the best line to take.

calldown from here.

alternate lines are b/c turn and b/c river. or b/c turn and c/r river.

Just call him down - your hand is super face up and I think the possibility of a bluff here on his part is quite possible as well him just going spew-monkey aggro on your ass.

He may not be just overvaluing his hands but undervaluing yours
You said it yourself that you took down a few Ace high

Continuing to call down as suggested is good but c/r isn't bad either
Prolly a mixture of both is best since it seems you two are battling for your big frequently