[granny50]

This seems very read dependant. I am a noob so dont take my word as gospel. But the river raise does not seem to make much sense. He could have a pocket pair higher than 6s and could have counterfeited u on the river. If you have a read such as he would make this move with just ace high sure go ahead and raise, but otherwise this raise doesnt seem right to me.
I guess when u said I still have two pair, I figure this is a player who will pull this bet with just A high.