As I said, I could be off but:

If we decide to c/c I think he might check behind his non nut flushes. Looking back on the hand this looks alot like a smaller flush, jxD 78D or something like that. But I also think he will def. call a shove getting 3:1 with these hands. It's also 10nl and I expect a Q to call here a fair amount cuz trips r good. I don't think he calls flop and raises the turn too often without a made flush or 55 (which is a small part of his range) and not the nut flush cuz they usually slowplay that. So that's why I shove river.