thinking back on what you said about him being weak tight and the fact he acted before you, so your being in the hand or not had no bearing on his decision I'd probably expand my range of hands for him to flat call to be AQ/QQ.

The river raise could indicate that he was waiting to see if an A/K hit or if could be my first thoughts.

I'd still put him on a set and probably come back over the top to like $50 to test him (also probably why I'm in a slight downswing last few days ~lol~) and be willing to push if he does or I'd trust the read on him and, if he hasn't shown any tricky plays so far, belive that his raise on the river indicates that he liked the 8.