Calling station is me ofcourse and i'm concerned about this hand.

I don't have much of a read on vilian but he's 30/5 over 40 hands. The 5% PFR made me call Preflop instead of the normal 3bet, what are your thoughts on not 3betting here?

I felt weak for only calling down in this spot but are their any other lines?

On the river his bet came over real strong since i had like 110$ left and he bet 91$ leaving me a little behind.

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


Pre-flop: (5 players) Hero is SB with
UTG calls, CO folds, Button raises to $9, Hero calls, BB folds, UTG calls.

Flop: ($29, 3 players)
Hero checks, UTG checks, Button bets $29, Hero calls, UTG folds.

Turn: ($87, 2 players)
Hero checks, Button bets $58, Hero calls.

River: ($203, 2 players)
Hero checks, Button bets $91, Hero calls.

Results:
Final pot: $385