Nervous with two pair

[ticks]

Ive been running over the table hitting good hands left and right when this hand came up.
Not been at the table long though, but villain seems loose.
I was naturally pleased with the turn card,
but got nervous when villain bet into me.

Sensible or am I a chicken?

Party Poker No-Limit Hold'em, $ BB (6 max, 6 handed) converter

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

<font color="#C00000">SB Villain ($24.55)</font>
BB ($32.20)
UTG ($15)
MP ($23.40)
<font color="#C00000">Hero ($63.15)</font>
Button ($48.60)

Preflop: Hero is CO with K[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/diamond.gif[/img]. SB Villain posts a blind of $0.10.
<font color="#CC3333">UTG raises to $0.5</font>, <font color="#666666">1 fold</font>, Hero calls $0.50, Button calls $0.50, SB Villain (poster) calls $0.40, <font color="#666666">1 fold</font>.

Flop: ($2.25) T[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/spade.gif[/img], 3[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
Villain checks, UTG checks, <font color="#CC3333">Hero bets $2.15</font>, Button folds, Villain calls $2.15, UTG folds.

Turn: ($6.55) K[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Villain bets $1</font>, Hero calls $1.

River: ($8.55) 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Villain checks, Hero checks.

Final Pot: $8.55