[Closed] NL10 55 set and fold...

I almost timed out but still folded, what can he have there??

Hand converted with online PokerStrategy.com hand converter:

Play hand

$0.05/$0.1 No-Limit Hold'em (9 handed)

Known players:
[tg]MP2$10.36:///////;MP3$10.27:///////;CO (Hero)$14.05:///////;BU$6.02:///////;SB$11.01:///////;BB$10.00:///////;UTG1$10.09:///////;UTG2$10.60:///////;MP1$6.67:///////;[/tg]

Preflop: Hero is CO with 5:s, 5:c.
3 folds, MP2 calls $0.10, MP3 folds, Hero calls $0.10, BU calls $0.10, SB folds, BB checks.

Flop: ($0.45) A:c, 5:d, Q:d (4 players)
BB checks, MP2 bets $0.30, Hero raises to $0.90, BU folds, BB folds, MP2 calls $0.60.

Turn: ($2.25) 4:h (2 players)
MP2 bets $0.50, Hero raises to $2.10, MP2 calls $1.60.

River: ($6.45) 6:d (2 players)
MP2 bets $7.26(All-In), Hero folds, MP2 gets uncalled bet back.

Final Pot: $6.45.