"Blind Stealing", Too Aggressive?

[BarkingMad]

Party 3/6

Preflop: Hero is SB with A [img]/images/graemlins/diamond.gif[/img] Q [img]/images/graemlins/diamond.gif[/img]
Everyone folds to Hero, Hero raises, BB calls.

Flop: (4 SB) 7 [img]/images/graemlins/spade.gif[/img] 6 [img]/images/graemlins/diamond.gif[/img] 10 [img]/images/graemlins/club.gif[/img] (2 players)
Hero bets, BB calls.

Turn: (3 BB) J [img]/images/graemlins/heart.gif[/img] (2 players)
Hero bets, BB calls.

River: (5 BB) K [img]/images/graemlins/spade.gif[/img] (2 players)
Hero bets, BB calls

Final Pot: 7 BB, between Hero and BB.

My thinking after his call on the turn was that he had to have hit the board, and my only chance to take it down was to bet the river.

I know this hand isn't all that profound, maybe the reason it sticks in my mind is because of how upset BB was after the hand (He used the word "biatch" numerous times and challenged me to try to steal his blind again [img]/images/graemlins/shocked.gif[/img]. Next time I'll remember to turn off player chat). Was I too aggressive / stupid?

TIA