Flat call on river with "2nd nuts"??

[Godson]

I use to play ALOT of CAZ 8/16 and I never found the game to be tight.. maybe once lol, strange.. anyways, nobody has asked this yet but, what did your instinct tell you? You can earn alot of profit in these tough situations (saving bets, pumping the pot) by going on ur read of the player. Maybe not this hand in particular, because if he did have 44 or 33, he would appear quite confident i would suspect. Just a thought, tough beat though, like everyone else said I would have lost the same or more.