Flopped MP 15BB deep, facing small check-raise

I'm learning how to play HUSNGs at the moment and I feel like I've learned a lot over the last month or so but I still seem to come unstuck in certain situations. This is probably one of them.

Villain in this game calls a fair bit OOP but generally seems fit or fold post flop. In terms of game flow, I have folded two out of the last three buttons.

Given his passive tendencies and his small raise size, should I give him credit for a hand and be prepared to let this one go? Or do I flat or 3-bet AI?

No Limit Holdem Tournament
2 Players
Hand Conversion Powered by weaktight.com
$10.00+$0.43

Stacks:
Hero (SB) (865)
BB (2,135)

Blinds: 25/50

Pre-Flop: (75, 2 players) Hero is SB 5 7
Hero raises to 100, BB calls 50

Flop: J 7 6 (200, 2 players)
BB checks, Hero bets 120, BB raises to 250, Hero ??