Bigger 3bet pre since you're 130BB deep, $3 or so is fine.

What he actually did was far looser, and more aggro than I'd give him credit for, but it was basically just spewy - he checkraised the nut flush draw. Why? Who knows. I doubt he figured I'd fold what I had and was repping.
It helps to be able to not get frustrated that people don't play the way you think they should. He'll play his way and you'll play yours.

Anyway you seem to be annoyed that you lost the hand, would you have posted it if you won what is essentially a flip?

Take a note on his play and move on.