QQ: Raise/Re-Raise/Fold

[PokerFink]

100nl 6max on Stars. We're 4-handed.

Hero is button with $140. Villian is SB and covers. Villian is tricky, he is roughly 40/23, but this is the first time he has re-raised preflop that I've seen.

I've been raising probably 50% of my buttons since we went 4-handed.

I get QQ on the button. CO folds, I raise to $4, SB raises to $12, BB folds, I raise to $40, SB pushes, I fold.

Thoughts?