Villain is just giving his money away. Running like 75/11. He never ever folds the flop, and rarely folds turn.
Whenever he had 2pr+, he played it really fast by raising the flop huge and jamming the turn.

Did I overplay my hand?

$1/$2 No Limit Holdem
5 Players
Hand Conversion Powered by weaktight.com

Stacks:
Hero ($320.20)
CO ($257.80)
BTN ($234)
SB ($403.70)
BB ($211.35)

Pre-Flop: ($3, 5 players) Hero is UTG
Hero raises to $7, 2 folds, SB calls $6, 1 fold

Flop: ($16, 2 players)
SB checks, Hero bets $32, SB calls $32

Turn: ($80, 2 players)
SB checks, Hero bets $80, SB calls $80

River: ($240, 2 players)
SB checks, Hero bets $201.20