KK as bluffcatcher vs tilty unknown

[shpanko]

Ok so the villain in the hand is unknown but I just stacked him like 5 hands ago with the following hand. THis is 200 NL BTW, stacks in first hand are $200.

I raise Ac7c on the button and he calls in BB. Flop is 67Qr,he checks, I c-bet $10 into $14, he c/r'es me to $40, I get a strange vibe from him so I call. Turn is another Q, he instashoves for the remaining $150, I call and his 67 is no good (whoops).

So he's obviously a bit tilted by me when this hand comes up.

Villain min-raises UTG, SB calls, I repop to $20 with KK, villain calls, SB folds.

Flop (Pot $44)
A[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/spade.gif[/img] 5[img]/images/graemlins/club.gif[/img]

Hero checks, villains bets pot pretty quickly, Hero calls.

Turn: (Pot ~$130)
5[img]/images/graemlins/diamond.gif[/img] Hero checks, villain shoves AI fairly quickly for $210, Hero?

So you guys have all the history between us there is and know what I know, I know he's tilting and am not sure what he'd do this with. Can I call here or is this an easy fold?