With the size of the pot its relatively expensive to find out when he actually has an ace and when he does not and hes fos on the turn. With an ace he will fire the river again and it will cost even more. However, I dont have a note on him that says "multistreet bluffs in BSB", so I dont know if he can fire the river on air.

Also, from his perspective, it looks like I might have an ace, since he hasnt been stealing all too much for me to start raising him back out of the big blind.