NL $400 weird spot vs maniac

[Llama88]

Reads on opponent-raises frequently, but has not yet reraised pf but ive seen him 4bet some one else with AK and check down to the river. Also i havent seen him bluff both the flops and turns, usually if he bluffs it is on the flop as a cbet and sometimes he'll also bluff river.

Poker Stars - No Limit Hold'em Cash Game - $2/$4 Blinds - 2 Players - (LegoPoker Hand History Converter)

Hero (BB): $772.40
SB: $585.25

Preflop: Hero is dealt Q[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">SB raises to $12.00</font>, <font color="red">Hero raises to $36.00</font>, <font color="red">SB raises to $97.00</font>, Hero calls $61.00

Flop: ($194) J[img]/images/graemlins/heart.gif[/img] 9[img]/images/graemlins/club.gif[/img] 2[img]/images/graemlins/spade.gif[/img] (2 Players)
Hero checks, <font color="red">SB bets $172.00</font>

Pot Size: $366.00