At what point was should I have given this up?

[Monkey_Child]

I'm thinking the turn was a good place, but it was hard to lay down to such a weak bet. I called the pre-flop reraise hoping for over calls, and I was planning to get out if I didn't catch a set.

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

Pre-flop: (9 players) Hero is UTG+1 with T[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/spade.gif[/img]
UTG folds, <font color="#cc0000">Hero raises to $2.5</font>, MP1 calls, MP2 calls, 4 folds, <font color="#cc0000">BB raises to $7.5</font>, Hero calls, 2 folds.

Flop: 3[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/club.gif[/img] 5[img]/images/graemlins/heart.gif[/img] ($20.25, 2 players)
<font color="#cc0000">BB bets $6.5</font>, Hero calls.

Turn: 4[img]/images/graemlins/spade.gif[/img] ($33.25, 2 players)
<font color="#cc0000">BB bets $10.5</font>, Hero calls.

River: A[img]/images/graemlins/spade.gif[/img] ($54.25, 2 players)
<font color="#cc0000">BB bets $1.5</font>, Hero calls.

Results:
Final pot: $57.25