25NL: do you ever fold this spot? (weak flush)

[rwdvc]

My villain is 31/9/2.9 over 160 hands. My play here seams weak/tight to me which is just crappy to begin with. Anyhow, with such a weak flush getting some resistance do you ever fold this spot, or do you repop him AI? At any rate, any and all comments are appreciated.

Poker Stars, $0.10/$0.25 NL Hold'em Cash Game, 5 Players
LeggoPoker.com - Hand History Converter

SB: $14.35
Hero (BB): $44
UTG: $16.10
CO: $28.25
BTN: $26.50

Pre-Flop: 7[img]/images/graemlins/spade.gif[/img] 5[img]/images/graemlins/spade.gif[/img] dealt to Hero (BB)
UTG calls $0.25, CO folds, BTN calls $0.25, SB calls $0.15, Hero checks

Flop: ($1) K[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/spade.gif[/img] (4 Players)
SB checks, <font color="red">Hero bets $1.45</font>, <font color="red">UTG raises to $2.90</font>, 2 folds, Hero calls $1.45

Turn: ($6.80) J[img]/images/graemlins/diamond.gif[/img] (2 Players)
Hero checks, <font color="red">UTG bets $4.75</font>