TPGK+ 2ndnutFD facing decision.

[EsandWhizz]

Poker Room skin
No Limit Holdem Ring game
Blinds: $0.25/$0.50
5 players
Converter

Stack sizes:
UTG: $10.95
Hero: $57.20
Button: $53.60
SB: $86.15
BB: $50

Pre-flop: (5 players) Hero is CO with Q[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/diamond.gif[/img]
UTG folds, <font color="#cc0000">Hero raises to $2</font>, Button folds, <font color="#cc0000">SB raises to $4</font>, BB folds, Hero calls.

Flop: 7[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/diamond.gif[/img] Q[img]/images/graemlins/diamond.gif[/img] ($8.5, 2 players)
<font color="#cc0000">SB bets $10</font>, <font color="#cc0000">

No stats on sb but iv noticed hes a serial min-raiser wether its a good hand or bluff. This means its hard for me put him on a tight range of hands. From his flop bet he obviously has a hand but i think he does not like the diamonds . What do we do here?