But I have two pair

44/9 over 70 hands

I folded because villain is passive and after the check raise turn, he's still willing to ship his stack in the middle. Thoughts on the fold?

PokerStars No-Limit Hold'em, $0.25 BB (8 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

saw flop

Button ($38.15)
SB ($4.45)
BB ($14.05)
UTG ($11.15)
UTG+1 ($4.85)
MP1 ($12)
Hero (MP2) ($42.20)
CO ($5)

Preflop: Hero is MP2 with 10, J
3 folds, Hero raises to $1, 3 folds, BB calls $0.75

Flop: ($2.10) J, 4, 8 (2 players)
BB bets $0.75, Hero calls $0.75

Turn: ($3.60) 10 (2 players)
BB bets $1.25, Hero raises to $4, BB calls $2.75

River: ($11.60) 6 (2 players)
BB bets $8.30 (All-In), Hero folds

Total pot: $11.60 | Rake: $0.55

villain has a straight or a lower two pair...

One way to exploit a fish: fold two pair when he shows unusual aggression on all 3 streets.

That said, does his range here never include AJ, KJ, QJ ?

he's also 60bb stacking 25nl FR which means he very bad at poker and probably bricked a flush draw. or KQ

You raised the turn for value, and the river bricked every conceivable draw, and now you want to fold. That's just silly.

Ah OK, that's me told. And you AF.