Villain is running 68/4:
Results below

Am I supposed to let this go too?

PokerStars No-Limit Hold'em, $0.25 BB (9 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

Button ($37.70)
SB ($45.20)
BB ($2.60)
UTG ($17.85)
UTG+1 ($46.45)
MP1 ($17.75)
MP2 ($24.40)
Hero (MP3) ($23)
CO ($27.70)

Preflop: Hero is MP3 with K, A
2 folds, MP1 raises to $0.75, 1 fold, Hero raises to $2.40, 2 folds, SB calls $2.30, 2 folds

Flop: ($5.80) K, 7, 10 (2 players)
SB bets $3, Hero raises to $10.90, SB raises to $18.80, Hero raises to $20.60 (All-In), SB calls $1.80

Turn: ($47) 6 (2 players, 1 all-in)

River: ($47) 9 (2 players, 1 all-in)

Total pot: $47 | Rake: $2.30


Results:
Villain has KJ and I hold