made a big mistake in this hand

[acidca]

Villain was passive in position preflop, but 3-bet me a lot oop and also limp-raised me sometimes, since I am very aggro pre. Post villain is tricky and aggro.

Stacks are about even at t1500.

Hero is dealt A[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/diamond.gif[/img] in the sb.
Hero posts sb of t10.
<font color="red">Hero raises to t60</font>, villain calls.
Flop: (pot is t120)
7[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/heart.gif[/img] 7[img]/images/graemlins/club.gif[/img]
Villain checks, <font color="red">Hero bets t80</font>

This was a major error and I immediately realized it after the hand.