I decided to go for the pot bets vs this guy, but what to do on the river when the flush comes in?

Player 3(SB) $22.33 - VP:24 PFR:20 AF:2.4 W:20|75 STL:42|84 3B:9|0 CB:75|60 N:12.28 Hands:100
Player 4(BB) $10.57 - VP:36 PFR:9 AF:0 W:67|100 STL:25|50 3B:0|0 CB:0|50 N:5.47 Hands:11
Me(UTG) $27.59
Player 1(BTN) $12.27 - VP:38 PFR:21 AF:1.0 W:63|80 STL:50|60 3B:9|0 CB:67|50 N:11.95 Hands:24



Pre Flop: Me(UTG) with [9h,8h]
Me(UTG) raises 0.30,
Player 1(BTN) calls 0.30,
Player 3(SB) folds,
Player 4(BB) folds


Flop: (9d,9s,As)(2 players)
Pot - 0.75
Me(EP) bets 0.75,
Player 1(BTN) calls 0.75


Turn: Kh (2 players)
Pot - 2.25
Me(EP) bets 2.25,
Player 1(BTN) calls 2.25


River: 2s (2 players)
Pot - 6.75
Me(EP)?