$7 hyper T5s, river str8 raise/call?

PokerStars - $6.85+$0.15|15/30 NL (2 max) - Holdem - 2 players
Hand converted by PokerTracker 4

BB: 19.67 BB (VPIP: 60.38, PFR: 43.75, 3Bet Preflop: 22.22, Hands: 54)
Hero (SB): 13.67 BB

Hero posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has 5♠ T♠

Hero raises to 2 BB, BB calls 1 BB

Flop: (4 BB, 2 players) 2♠ A♦ 3♥
BB checks, Hero bets 1.6 BB, BB calls 1.6 BB

Turn: (7.2 BB, 2 players) 3♣
BB checks, Hero checks

River: (7.2 BB, 2 players) 4♦
BB bets 2.57 BB, Hero raises to 5.5 BB, BB raises to 16.07 BB and is all-in, Hero calls 4.57 BB and is all-in

BB shows 6♠ 5♥ (Straight, Six High) (Pre 31%, Flop 28%, Turn 22%)
Hero shows 5♠ T♠ (Straight, Five High) (Pre 69%, Flop 72%, Turn 78%)
BB wins 27.33 BB

Hi!

My opponent is a reg, 3betting 22%, flat 48% overall. Is the river raise is ok? Now i would fold to his river 3bet, because, he will not push back 3x, is it ok?

thanks, elekadammate