20NL 6-max line check

I just would like a line check and analysis into what to do on river.
The villain in this hand (the button) is the guy who I won my stack off of and seemed to be entering every pot that I did. It was clear that he wanted his chips back and was somewhat spewing against me...

Prima Network No-Limit Hold'em, $0.20 BB (6 handed) Hand History converter Courtesy of PokerZion.com

Button ($44.03)
Hero ($37.85)
BB ($19.50)
UTG ($9.62)
MP ($29.35)
CO ($15.40)

Preflop: Hero is SB with 4[:club:], 4[:spade:].
UTG raises to $0.4, 2 folds, Button calls $0.40, Hero calls $0.30, BB calls $0.20.

Flop: ($1.60) 6[:spade:], 9[:diamond:], 4[:diamond:] (4 players)
Hero checks, BB checks, UTG bets $0.8, Button calls $0.80, Hero raises to $2, BB folds, UTG folds, Button calls $1.20.

Turn: ($6.40) A[:spade:] (2 players)
Hero bets $3.2, Button calls $3.20.

River: ($12.80) Q[:diamond:] (2 players)
Hero checks, Button bets $6.4.

Final Pot: $19.20

raise more on the flop (3,5) and bet the pot on the turn. i like a check / call on the river. if he shoves all in on the river, well you have a tough decision, but if you think he is tilting a bit don't lay it down