POLL: Standard line for TPTK vs flop raise

[BearHustler]

Reposted to include poll.

I have played 5 hands with this guy, so no reads, sorry.

No Limit Holdem Ring game
Blinds: $1/$2
5 players

Stack sizes:
UTG: $285.25
CO: $191.90
Button: $469.75
Hero: $198
BB: $40

Pre-flop: (5 players) Hero is SB with A [img]/images/graemlins/club.gif[/img] Q [img]/images/graemlins/club.gif[/img]
UTG calls, CO calls, Button folds, Hero raises to $15, BB folds, UTG calls, CO calls.

Flop: 9 [img]/images/graemlins/club.gif[/img] Q [img]/images/graemlins/heart.gif[/img] 8 [img]/images/graemlins/heart.gif[/img] ($47, 3 players)
Hero bets $35, UTG folds, CO raises to $70

Wondering what you all consider standard in these spots.

I still haven't figured it out if it's fold, call, raise or push.

I'm pretty sure it's not call, but I'm clueless here, so anything's possible.

I also find it hard to fold here, as it would become very easy to push me off a very good hand at a very cheap price.

Raise? I guess, but aren't we all-in or committed after that?

So push? But doesn't that allow them to play all hands with implied odds perfect against us?

Thx.