50NL Misclick leads to difficult decision with overpair on flop

[PlzHelpMe]

No stats/reads on the flop i meant to bet $3 but accidently minbet so wasn't sure if that induced a raise so i 3bet.

Full Tilt Poker
No Limit Holdem Ring game
Blinds: $0.25/$0.50
6 players
Converter

Pre-flop: (6 players) Hero is UTG with T[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/club.gif[/img]
<font color="#cc0000">Hero raises to $2</font>, UTG+1 folds, CO calls, 3 folds.

Flop: 3[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/diamond.gif[/img] 5[img]/images/graemlins/spade.gif[/img] ($4.75, 2 players)
<font color="#cc0000">Hero bets $0.5</font>, <font color="#cc0000">CO raises to $3</font>, <font color="#cc0000">Hero raises to $14.25</font>, <font color="#cc0000">CO raises all-in $74.55</font>, Hero???