100nl overpair vs loose opp

[KillsAids]

Opponent is 17/14 and is a new reg (First time I see him but he was with me on like 7 tables but had about 370 hands before this happened). He 3b 7%, cbets in 3b pot 2 out of 2 times and double barreled 2 out of 3 times. He seemed spewy in previous hands, but not really throwing his money away with nothing, just like overrepping his hands in spots he shouldn't, etc. Folding seems so nitty but I don't feel like I can continue anymore after the turn?

PokerStars No-Limit Hold'em, $1.00 BB (7 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

saw flop

BB ($111.75)
UTG ($95.70)
MP1 ($100)
Hero (MP2) ($113.25)
CO ($100)
Button ($166.65)
SB ($100)

Preflop: Hero is MP2 with 10, 10
2 folds, Hero bets $3.50, CO raises to $11, 3 folds, Hero calls $7.50

Flop: ($23.50) 9, 5, 3 (2 players)
Hero checks, CO bets $16, Hero calls $16

Turn: ($55.50) 9 (2 players)
Hero checks, CO bets $20

[bikes]

I think flatting the 3b is a massive leak. He's going to be able to outplay you on every board without a T. If you don't feel like you can continue on a all unders board you shouldn't be flatting preflop.

Either fold or 4b/c preflop, given reads.

As played, fold I suppose, though CRAI is definitely an option here.

[badgers]

TBH vs. the villain you described I would be more likely to just 4bet/fold pre since calling is going to put you in all sorts of shit oop with what is going to be a bluffcatcher on most boards. As played you have to fold turn.