Is this weak or an ok line?

[luckbalks]

Full Tilt Poker
$0.10/$0.25 No Limit Hold'em Ring Game
6 Players
LegoPoker Hand Converter (http://www.legopoker.com/hh)

<font color="black">Stack Sizes</font>
CO: $24.90
BTN: $32.95
SB: $35.25
Hero (BB): $26.05
UTG: $18.45
MP: $30.65

<font color="black">Preflop:</font> A/images/graemlins/spade.gif A/images/graemlins/heart.gif ($0.35, 6 players)
UTG folds, <font color="red">MP raises to $0.50</font>, CO folds, BTN calls $0.50, SB calls $0.40, <font color="red">Hero raises to $3.25</font>, MP calls $2.75, BTN calls $2.75, SB calls $2.75

<font color="black">Flop:</font> 5/images/graemlins/heart.gif J/images/graemlins/spade.gif J/images/graemlins/club.gif ($13, 4 players)
SB checks, Hero checks, MP checks, BTN checks

<font color="black">Turn:</font> 5/images/graemlins/heart.gif J/images/graemlins/spade.gif J/images/graemlins/club.gif [8/images/graemlins/club.gif] ($13, 4 players)
SB checks, Hero checks, MP checks, <font color="red">BTN bets $6.50</font>, SB folds, Hero calls $6.50, MP folds

<font color="black">River:</font> 5/images/graemlins/heart.gif J/images/graemlins/spade.gif J/images/graemlins/club.gif 8/images/graemlins/club.gif [4/images/graemlins/club.gif] ($26, 2 players)
Hero checks, BTN checks

[Bork]

Seems super weak and bad to me.

Why no good sized bet on flop?

[luckbalks]

3 other players in the pot, I'm second to act...

It seems I was getting raised alot in this game so maybe that had something to do with it.