Going nuts with 66

[DCM]

Poker Stars 2-4 short handed
Fiver handed I am in the cutoff. Folded to manic in front of me he raises, I Reraise with 6 [img]/images/graemlins/spade.gif[/img] 6 [img]/images/graemlins/club.gif[/img], folded back to the manic he rerasies I cap.
The flop is A [img]/images/graemlins/spade.gif[/img] T [img]/images/graemlins/diamond.gif[/img] 3 [img]/images/graemlins/heart.gif[/img] He checks I bet, he calls
Turn is 4 [img]/images/graemlins/heart.gif[/img] He bets I raise he 3 bets I call.
River is 9 [img]/images/graemlins/diamond.gif[/img] He bets I call
Thoughts? I never would have played the hand this way against a normal or good player, but i had seen him 3bet the river with A high. But i still think i drastically overcompensated.