Full Tilt No-Limit Hold'em, $1.00 BB (4 handed) - Full Tilt Converter Tool from FlopTurnRiver.com

Button ($199.25)
SB ($229.55)
Hero (BB) ($164.60)
UTG ($100)

Preflop: Hero is BB with A, K
2 folds, SB bets $3, Hero calls $2

Flop: ($6) 4, 6, 10 (2 players)
SB checks, Hero bets $4, SB calls $4

Turn: ($14) 10 (2 players)
SB checks, Hero bets $11, SB calls $11

River: ($36) Q (2 players)
SB checks, Hero bets $26, SB raises to $70, Hero ?

Villain is a reg running 25/21 over about 400 hands with 70% fold to 3-bet, opening 20% sb v bb, AF 3. Probably sees me as spewy.

Comments:

Don't like preflop. I was worried about being 4-bet (since I didn't want to stack off pre), but stacks are big enough to flat a 4-bet in position with a pretty wide range and I think that's what I should have done with this hand.

My river sizing is probably too big, because at the time I thought my range was more bluff-heavy and had less Tx and flush combos compared with what I think now.

His check raise reps 3 combos of QQ and pretty much nothing else for value. On the other hand, he doesn't rep hands with no pair either. He might c/c twice with 77, 88, 99 then turn them into a bluff, he certainly can't call with those hands on this river. If I fold everything but my 7 combos of 44, 66, TT then bluffing is an awesome play for him, so I feel like without a read on how he plays this spot I have to call at least some flushes?