Decided upon friendly advice to drop down a notch to 50 NL, probably not a bad idea until I get a proper grip on the situation.

Villain here is 22/18/6 over 400 hands. Pretty agressive when he raises the pot, often defends his raises, and I felt I had a good chance here. Plenty outs if he has overpair and a fairly good hand if he has AK/AQ, which I thought likely.

Is folding an option? I often see these plays made and it hurts your stack if you miss or villain's got a better hand than you thought, but are they profitable enough?

$0.25/$0.5 No Limit Holdem
6 players
Converted at weaktight.com

Stacks:
Hero (UTG) ($44.09)
UTG 1 ($60.07)
CO ($130.35)
BTN ($34.25)
SB ($28.25)
BB ($31.64)

Pre-flop: ($0.75, 6 players) Hero is UTG
Hero calls $0.50, UTG 1 raises to $3, 4 folds, Hero calls $2.50

Flop: ($6.75, 2 players)
Hero bets $5, UTG 1 raises to $16, $11 to Hero ($36.09)?