50nl - so lets put villain on 1 combo and fold?

[Micro2Macro]

PokerStars No-Limit Hold'em, $0.50 BB (8 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

SB ($57.80)
BB ($50)
UTG ($30.10)
UTG+1 ($22.15)
MP1 ($64.45)
MP2 ($20)
CO ($72.20)
Hero (Button) ($60.95)

Preflop: Hero is Button with A, K
1 fold, UTG+1 calls $0.50, MP1 calls $0.50, 1 fold, CO bets $3, Hero calls $3, 2 folds, UTG+1 calls $2.50, MP1 calls $2.50

Flop: ($12.75) 4, A, 4 (4 players)
UTG+1 checks, MP1 checks, CO checks, Hero bets $5, 1 fold, MP1 calls $5, 1 fold

Turn: ($22.75) 5 (2 players)
MP1 checks, Hero checks

River: ($22.75) 6 (2 players)
MP1 bets $13, Hero folds

10/9 nit fold to flop cb 100%

tanked a bit on river before betting