Flop nut flush draw, Turn top pair?

[frozenhops]

Party Poker No-Limit Hold'em, $ BB :#A500AF(boarder52)/ (6 max, 5 handed) converter

saw flop|<font color="#C00000">saw showdown</font>

Button ($33.75)
SB ($40.3)
<font color="#C00000">BB Villian ($44.6)</font>
UTG ($45)
<font color="#C00000">Hero ($49.97)</font>

Preflop: Hero is MP with T[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/heart.gif[/img]. SB posts a blind of $0.25.
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $2</font>, <font color="#666666">1 fold</font>, SB (poster) calls $1.75, Villian calls $1.50.

Flop: ($6) 8[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">SB bets $3</font>, <font color="#CC3333">Villian raises to $10</font>, Hero calls $10, SB folds.

Turn: ($29) A[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Villian bets all-in, Hero calls $32.60.

River: ($61.60) 9[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>

Final Pot: $61.60

Felt the SB had a feeler bet. Hand history a few hands ago put the villian raising a short-stack all in on the turn with just middle pair in a multi-way pot. I felt this opened up his range of hands to include just a single king or pair in addition to set/small flush/pair and draw.

Do you fold on the flop? Fold on the turn?