low set against major lag

villain was 70/30... did i push him too hard? i figured he'd call with a pair.. he'd been doing it all night long... after the hand he said he had J9 and it was a "tough laydown" comments?

Party Poker No-Limit Hold'em, $ Hero (6 max, 6 handed) internettexasholdem.com

saw flop|<font color="#C00000">saw showdown</font>

Button ($152.95)
SB ($69.45)
Hero ($100)
UTG ($81.77)
MP ($341.50)
CO ($115.92)

Preflop: Hero is BB with 5[img]/images/graemlins/spade.gif[/img], 5[img]/images/graemlins/diamond.gif[/img]. SB posts a blind of $0.50.
<font color="#666666">1 fold</font>, <font color="#CC3333">MP raises to $3</font>, <font color="#666666">3 folds</font>, Hero calls $2.

Flop: ($6.50) J[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $4</font>, <font color="#CC3333">MP raises to $8</font>, <font color="#CC3333">Hero raises to $30</font>, MP folds.

Final Pot: $44.50
<font color="#009B00">Main Pot: $22.50, won by Hero.</font>
<font color="#009B00">Pot 2: $22, returned to Hero.</font>