I think this is ISF theory. It just went a bit differently than I expected. Over about 80 hand villain was ~74/33/3.3. I was 23/15/1.5, and hadn't been getting out of line with 3bets or post flop raises on any street.

My range to open/call UTG and c/r that flop is so far ahead of so many of the hands he's 3betting preflop, and cbetting when checked to, that it becomes a great spot to c/r bluff, right?

That was my line of thinking at the time during the hand (before I had read your post for the first time in like 2 years).

PokerStars No-Limit Hold'em, $0.10 BB (5 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Button ($33.70)
SB ($10)
BB ($10.20)
Hero ($18.65)
MP ($9.25)

Preflop: Hero is UTG with A, Q.
Hero raises to $0.5, 1 fold, Button raises to $2, 2 folds, Hero calls $1.50.

Flop: ($4.15) 7, 3, 8 (2 players)
Hero checks, Button bets $2, Hero raises to $6.5, Button raises to $11, Hero raises to $16.65, Button calls $5.65.

Turn: ($37.45) A (2 players)

River: ($37.45) T (2 players)

Final Pot: $37.45