Button is a donk. 38/5/1.50

PokerStars No-Limit Hold'em, $0.25 BB (6 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

SB ($29.30)
BB ($11.95)
UTG ($6.40)
MP ($26.50)
Hero (CO) ($25)
Button ($37.05)

Preflop: Hero is CO with Q, 10
UTG bets $0.75, 1 fold, Hero raises to $1.25, Button calls $1.25, 3 folds

Flop: ($3.60) A, 9, J (2 players)
Hero bets $1.90, Button calls $1.90

He called here so I put him on a weak Ace.

Turn: ($7.40) 8 (2 players)
Hero bets $6, Button calls

He calls again so now I put him on AJ, A10, A9

River: ($19.40) 2 (2 players)
Hero bets $6, Button calls $6