Pokerstars Hand - HU NL Tournament (Please comment)

On the bubble, hero has made it through the first 2 rounds of the 128 person tourney.

Hero has a slight chip lead over his opponent (6,800 - 5,200)

Hero gets dealt 4 [img]/images/graemlins/spade.gif[/img] 4 [img]/images/graemlins/diamond.gif[/img]

Opponent calls BB, Hero makes it 4BB to go. Opponent calls.

Flop: 2 [img]/images/graemlins/club.gif[/img] 3 [img]/images/graemlins/diamond.gif[/img] 6 [img]/images/graemlins/spade.gif[/img]

Hero leads out and bets 7BB, Opponent pushes AI.

Hero uses time bank, and calls...