A8o BU contra donkey

Hand converted with online PokerStrategy.com hand converter:

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$0.1/$0.25 No-Limit Hold'em (7 handed)

Known players:
[tg]BB$44.47:///////;MP1$48.07:///////;MP2$29.65:///////;MP3$25.45:///////;CO$38.55:///////;BU (Hero)$25.00:///////;SB$17.41:///////;[/tg]

Preflop: Hero is BU with A:c, 8:s.
3 folds, CO calls $0.25, Hero raises to $1.00, 2 folds, CO calls $0.75.

Flop: ($2.35) 8:d, K:d, 3:h (2 players)
CO checks, Hero bets $1.50, CO calls $1.50.

Turn: ($5.35) A:s (2 players)
CO checks, Hero bets $3.50, CO calls $3.50.

River: ($12.35) T:c (2 players)
CO checks, Hero bets $7.75, CO raises to $32.55(All-In), hero ???

Fala pessoal,

Fiquei em dúvida nessa mão. Nosso vilão tem poucas mãos mas parecia ser um donkey, coloquei ele com dois pares melhores do que o meu, o que vcs acham?

Stats do vilão 22 hands:
VPIP/PFR: 59/14
fold to cbet: flop - 25%(8) turn - 50%(4)