Easy fold right?

[Vancity82]

Live 1-2 NL,

Hero on button (5,5), 4 limpers. Villian in BB, I haven't been at table very long so I only know he's tight.

Flop 8,8,A r

Checked round

Turn 5

BB bets 15 everyone folds, Hero Calls

River A

BB bets 25, Hero Folds

I flip over my cards to show the river screwed me, villian doesn't show. Happy with my fold until the table is all confused as to how I could fold a full house for $25, maybe they knew something about him I didn't.

Straight forward right?