set facing overbet allin on river

[gergong2]

Villain is 69.4/10.6/1.8 over 85 hands. He made 2 big overbets earlier but was not called.

GAME #699497898: Texas Hold'em NL $0.25/$0.50 2007-10-25 23:36:07
Table Butterworth
Seat 1: UTG ($30.00 in chips)
Seat 3: Villain ($53.12 in chips)
Seat 5: Dealer ($25.65 in chips)
Seat 6: Hero ($108.91 in chips)
Seat 10: BB ($121.45 in chips)
Hero: Post SB $0.25
BB: Post BB $0.50
*** HOLE CARDS ***
Dealt to Hero [ [img]/images/graemlins/club.gif[/img]10 [img]/images/graemlins/diamond.gif[/img]10]
Villain: Raise $1
Button: Fold
Hero: Call $0.75
BB: Fold
*** FLOP *** [ [img]/images/graemlins/heart.gif[/img]10 [img]/images/graemlins/heart.gif[/img]Q [img]/images/graemlins/club.gif[/img]7]
Hero: Check
Villain: Bet $0.50
Hero: Raise $3.00
Villain: Call $2.50
*** TURN *** [ [img]/images/graemlins/diamond.gif[/img]2]
Hero: Bet $6.50
Villain: Call $6.50
*** RIVER *** [ [img]/images/graemlins/heart.gif[/img]3]
Hero: Check
Villain: Allin $42.62
Hero: Fold

Thoughts? River bet was an insta shove after my check.