Villain is 19/5

PokerStars No-Limit Hold'em, $0.10 BB (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG+1 ($0.90)
Hero ($9.75)
MP2 ($3.35)
MP3 ($11.95)
CO ($5)
Button ($9.60)
SB ($7.40)
BB ($22.95)
UTG ($11.25)

Preflop: Hero is MP1 with K, A.
2 folds, Hero raises to $0.5, 3 folds, Button raises to $0.9, 2 folds, Hero calls $0.40.

Flop: ($1.95) 9, A, K (2 players)
Hero bets $1.5, Button raises to $8.7, Hero is really confused and pissed after an 11 buyin downswing..