Did I do anything wrong here?

(note: this is rush poker)

$0.02/$0.05 No Limit Holdem
FullTiltPoker
9 Players
Hand Conversion Powered by weaktight.com

Stacks:
UTG gioele65 ($5.07)
UTG+1 LeandroK ($1.95)
MP1 jackblack82 ($4.18)
MP2 Kingluchs ($5.33)
MP3 Duplet444 ($2.02)
CO Mr Sander ($5.99)
BTN Sheval_RUSS ($2.87)
SB PempeLT ($1.38)
BB Hero ($9.68)

Pre-Flop: ($0.07, 9 players) Hero is BB
gioele65 raises to $0.10, 7 folds, Hero raises to $0.25, gioele65 calls $0.15

Flop: ($0.52, 2 players)
Hero bets $0.35, gioele65 calls $0.35

Turn: ($1.22, 2 players)
Hero bets $0.85, gioele65 calls $0.85

River: ($2.92, 2 players)
Hero checks, gioele65 bets $3.25, Hero folds

Final Pot: $6.17

gioele65 wins $5.98 (net +$1.28)

Hero lost $1.45

I honestly just don't know what in fuck he has. He may have had a smaller set, Ax, flat called my turn c-bet when he made his flush etc. I'm pretty sure that giving up on the river was the right thing to do, just asking you guys if I should've bet thinly on the river. It seemed pretty spewy though, so meh