Villain is a 12/8/3 reg who seems to be noticing that I'm running around 40/30 on this table (4-tabling with a good run of cards) and is adjusting by calling preflop more often. A few hands recently I've taken it down with a cbet, and I've never been forced to play beyond the turn without a strong hand.

My brain started hurting before I could come up with a plan other than folding... given history and weak raise, is there a better play here?

Also, should I have just not cbet here? And if I do that, what's the plan if he a)bets, b)checks behind and a blank turn comes?

PokerStars No-Limit Hold'em, $1.00 BB (8 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Hero ($171.10)
MP1 ($18.50)
MP2 ($103.05)
CO ($42)
Button ($99.40)
SB ($20.50)
BB ($100)
UTG ($150.60)

Preflop: Hero is UTG+1 with 7, 7.
1 fold, Hero raises to $4, 1 fold, MP2 calls $4, 4 folds.

Flop: ($9.50) 9, 4, Q (2 players)
Hero bets $6, MP2 raises to $16, Hero folds.

Final Pot: $21.50