Steal attempt, continue?

[Roy6]

Folded to me on the button, I raise with QJo
The blinds call. I don't have a read on them, but both have 70% VPIP.

Flop: 246, with 2 [img]/images/graemlins/heart.gif[/img] I have no [img]/images/graemlins/heart.gif[/img]
Checked to me, I bet

Turn is a non- [img]/images/graemlins/heart.gif[/img] A

check, check, [img]/images/graemlins/confused.gif[/img]

OK I have a very clean image, so I bet.
The flop has a bicycle straight draw, so the A could help them. Is it chips spewing?

SB calls, BB folds
River is 9, non- [img]/images/graemlins/heart.gif[/img]
SB bets, I fold

This guy saw me C/C/B with AT on A flop, when he was PFRer.
So maybe he learned something or.. is he donking with his missed flush/straight?