nl50 overpair multiway gegen aggro reg

[waedi]

Grabbed byHoldem Manager
NL Holdem $0.50(BB) Replayer
SB ($52.19)
BB ($57.73)
UTG ($49.52)
UTG+1 ($50.25)
Hero ($85.75)
BTN ($51.77)

Dealt to Hero 9 9:diamond:

UTG raises to $1.50, fold, Hero calls $1.50, BTN calls $1.50, fold, fold,

FLOP ($5.25) 5:diamond: 2:diamond: 5:spade:

check, Hero bets $4.50, BTN raises to $9, UTG folds, Hero calls $4.50,

TURN ($23.25) 5:diamond: 2:diamond: 5:spade: A:diamond:

check, BTN bets $17, Hero folds

villain 24/21
hat mich oft ge3betted preflop. ich hab meistens gefoldet. sonst hatten wir eigl keine history.. zwar einmal hat er meine 4bet gecalled und ich hab den flop c/shoved. er hat gefoldet.

flop call ok? besser raisen?
was machen auf blank turn?