villian is 16/3/1.8 over 130 hands

firstly i know the pf raise is small but the guy who limped was like 56/40/2.0 over 100+ hands and he seems to fold to big pf raises so i didnt want to chase him away.
flop raise is really small making me think he might have a set, dont see him having 2 pair from his pf action, also dont think its KK QQ, possibly JJ / TT,
then the check on the turn confused me.

so what would you do on the flop / turn. I only have $14.xx left at the point of the turn raise so is it just an auto call?

Poker Stars $0.10/$0.25 No Limit Hold'em - 6 players
2+2 Hand Converter Powered By DeucesCracked

BTN: $10.00
SB: $35.30
BB: $26.80
UTG: $22.60
MP: $36.10
Hero (CO): $27.45

Pre Flop: Hero is CO with A A
1 fold, MP calls $0.25, Hero raises to $1, 1 fold, SB calls $0.90, 2 folds

Flop: ($2.50) 5 9 2 (2 players)
SB bets $0.75, Hero raises to $2.25, SB raises to $4.50, Hero calls $2.25

Turn: ($11.50) K (2 players)
SB checks, Hero bets $8, SB raises to $24, Hero ???

I really dont know what the passive villain could be doing this with other than a set or some wacky 2-pair. You told him that you liked your hand on 2 streets and he re-raised you each time. This is rarely a draw from this nitty player - I fold.

Getting 3b on this flop sucks, and I might check for pot control on the turn against someone with his stats. However I don't mind how you played the hand and I'm pretty sure you have to stack off here.