river decision

PokerStars No-Limit Hold'em, $0.25 BB (6 handed) - PokerStars Converter Tool from FlopTurnRiver.com

saw flop

MP ($25)
CO ($41.06)
Button ($25.70)
SB ($24.75)
Hero (BB) ($73.57)
UTG ($37.15)

Preflop: Hero is BB with
UTG bets $0.75, 4 folds, Hero calls $0.50

Flop: ($1.60) (2 players)
Hero checks, UTG checks

Turn: ($1.60) (2 players)
Hero bets $1, UTG calls $1

River: ($3.60) (2 players)
Hero checks, UTG bets $1.30, Hero raises to $3.50, UTG raises to $7, Hero ??






i'm ok image wise and villain is 18/16 cbet 65% after 80 hands, no reads to go by, he seemed competent..
any suggestions on different lines anyone, preflop call ok etc etc