Odd question

[flipflop1970]

OK I am playing 3/6 limit

I raise with AQh

SB reraises
BB folds
I call

flop
6,6,Th

BB bets
I call

Turn
Ac

BB bets
I raise
BB calls

River
5s

BB checks
I bet
BB calls

I win
he shows 88

and then says "nice chase"

I said I had the odds to call and see the turn. He then says it was heads up. I say so. He tells me to keep chasing? didn't i need to have around 4 -1 (3.2-1)pot odds and I believe it was offering me 8-1?? any insight would be great