Villain is 35/20. His UTG RFI is 29 and his 4bet range is 3. He folds to 3bets 26.

Standard 3bet here with top range. Should the sizing be bigger here? We are deep and he rarely folds to 3bets.

I am not sure if I should bet higher due to the fact that the board is pretty wet?

Now I am not sure if I should continue betting here. I would put villains range to be weighted more into pocket pairs and straight draws. My initial thoughts were that if I will bet here he will fold lots of hands that can bluff rivers when turn is checked. On the other hand I am giving him equity to realise with his draws. Also if river will be 4th diamond he might bluff there too.

Now if he didn't bet I tried to get some calls from his pocket pairs so I made lowish sizing here. When he raises I think he might be bluffing often because I was underrepresenting my hand and AA has great SDV.