KK, overplayed?

[sweetkness]

Full Tilt Poker - No Limit Hold'em Cash Game - $0.05/$0.10 Blinds - 2 Players - (LegoPoker HH Converter)

Hero (BB): $22.40
SB: $14.50

Preflop: Hero is dealt K[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">SB raises to $1.00</font>, <font color="red">Hero raises to $3.00</font>, SB calls $2.00

Flop: ($6) 8[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">Hero bets $4.00</font>, <font color="red">SB raises all-in to $11.50</font>, Hero calls $7.50

Turn: ($29) 2[img]/images/graemlins/club.gif[/img] (2 Players - 1 All-In)

River: ($29) T[img]/images/graemlins/spade.gif[/img] (2 Players - 1 All-In)

Pot Size: $29.00 ($0.25 Rake)

Hopefully I posted this right...this is my first post.

I had been playing with the guy a while. Anytime he made a raise, which wasn't too often, he made it 10X BB. Was this overplayed?