river question

[NYplayer]

other player is somewhat fishy in that he plays too loose preflop and makes weird moves. raises the turn a lot in an attempt to get you to fold. he's a higher limit fish so has some moves in his bag of tricks.

it's 3 handed and OP raises on button, I 3 bet AhAs in SB, bb fold and OP calls. (7sbs in pot)

flop: Ts 4h 6h
i bet, he raises, I 3bet, he 4bets, i 5bet
(8.5 bbs in pot)

turn Ac [Ts 4h 6h]
i bet, he raises, i 3 bet he calls
(14.5 bbs in pot)

river 9c [Ac Ts 4h 6h]
I bet and he raises.

how much action should I plan on giving on this river?