Gotta raise that turn (all in looks like), you've effectively given him a free card to beat you (which he does!!).

I think that given the development of the hand, on the river this is a calling hand at best. There were a lot of opponents going in, so I've got to be thinking someone may be sitting on a set, and when the board pairs I think "shit" and just call. There's so many cards we don't want to see on the river . . . . a ten, queen, king, spade, board pair . . . that's why we have to raise on the turn. Of course he probably calls anyway and we lose. C'est la vie.