Can I fold here?
Is it just me or does his line just not make sense?

Poker Room skin
No Limit Holdem Ring game
Blinds: $0.50/$1
4 players
Converter

Stack sizes:
Hero: $118.10
Button: $171.10
SB: $122.40
BB: $94.70

Pre-flop: (4 players) Hero is UTG with A 7
Hero raises to $4, Button calls, 2 folds.

Flop: 9 6 7 ($9.5, 2 players)
Hero checks, Button checks.

Turn: A ($9.5, 2 players)
Hero bets $6, Button raises to $17, Hero calls.

River: J ($43.5, 2 players)
Hero checks, Button bets $28, Hero calls.

Results:
Final pot: $99.5