リバーでpotBetをされたので「KQ」が濃厚と思いフォールド。
ブラフの可能性は高いのでしょうか? 

PokerStars - $0.05 NL FAST (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

BTN: 97.2 BB (VPIP: 9.38, PFR: 6.25, 3Bet Preflop: 0.00, Hands: 34)
SB: 113 BB (VPIP: 0.00, PFR: 0.00, 3Bet Preflop: 0.00, Hands: 1)
BB: 366 BB (VPIP: 53.33, PFR: 37.78, 3Bet Preflop: 28.57, Hands: 47)
UTG: 208.6 BB (VPIP: 9.09, PFR: 9.09, 3Bet Preflop: 0.00, Hands: 11)
MP: 219.4 BB (VPIP: 15.25, PFR: 11.86, 3Bet Preflop: 6.90, Hands: 119)
Hero (CO): 115 BB

SB posts SB 0.4 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.4 BB) Hero has K:heart: J:heart:

fold, fold, Hero raises to 3 BB, fold, SB calls 2.6 BB, fold

Flop: (7 BB, 2 players) K:spade: 5:club: Q:club:
SB checks, Hero bets 4.4 BB, SB calls 4.4 BB

Turn: (15.8 BB, 2 players) 2:spade:
SB checks, Hero checks

River: (15.8 BB, 2 players) 2:diamond:
SB bets 15.2 BB, fold

SB wins 15.2 BB