NL50: facing a big raise with a good draw

[alex-star]

The villain is 13/4/1.5 after 70 hands or so.

What's my line on the flop? Arr-in?

No Limit Holdem Ring game
Blinds: $0.25/$0.50
8 players
Converter

Stack sizes:
UTG: $40.52
UTG+1: $26
MP1: $48.35
MP2: $45.05
CO: $21
Hero: $59.15
SB: $22.60
BB: $6.41

Pre-flop: (8 players) Hero is Button with Q[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/club.gif[/img]
4 folds, <font color="#cc0000">CO raises to $1</font>, Hero calls, SB folds, BB calls.

Flop: 4[img]/images/graemlins/club.gif[/img] T[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/club.gif[/img] ($3.25, 3 players)
BB checks, CO checks, <font color="#cc0000">Hero bets $3.5</font>, BB folds, <font color="#cc0000">CO raises to $12.5</font>, Hero ??