opponent is 17/13 over 150 hands. He's been pretty aggressive, but seems a bit nitty. I'm pretty sure i'm only beating a bluff here...

PokerStars No-Limit Hold'em, $2 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Hero ($214.45)
UTG ($203)
MP ($205.20)
CO ($270.70)
Button ($116.10)
SB ($246.15)

Preflop: Hero is BB with Q, A.
1 fold, MP raises to $8, 3 folds, Hero calls $6.

Flop: ($17) J, A, A (2 players)
Hero checks, MP bets $8, Hero raises to $26, MP calls $18.

Turn: ($69) 2 (2 players)
Hero checks, MP bets $34, Hero calls $34.

River: ($137) 8 (2 players)
Hero checks, MP bets 137.20 (All in), Hero folds

Final Pot: $137