a lot of times when your turn FE is low, your river FE will still be high if you use good sizing. this is v good for you because he is donating more money before folding his hand. your flop/turn line doesnt strike me as terrible but it is something I would v rarely do. River- raising his lead after the flop/turn action doesn't make a whole lot of sense from a theory/handreading perspective and certainly neither does calling a 3bet but if you say he's a total drooler then fine. i would not fold to a small 3bet vs anyone i thought this hand was good enough to raise river w/