Two pair on an all diamond flop?

[RolloRolf]

A quick hand i'm having troubles with.

No reads on villan as I'm new to this table:

Hero: 10 $ and villan covers.
BB: .10 $


Preflop: Hero is in middle position with 7[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/heart.gif[/img].
All players call.

Flop: ($.60) 7[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/diamond.gif[/img] (6 players)
Hero checks, The player after me bets $.60. Rest fold. Hero raises to 1.6$. Villan moves in.


What to do?