villain is 21/5/0
he previously opened AQo and checked all streets behind with AQ high. if that even qualifies as a read

PokerStars No-Limit Hold'em, $0.10 BB (9 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com
MP2 ($10.03)
MP3 ($36.56)
Hero (CO) ($10)
Button ($10.47)
SB ($10)
BB ($7.79)
UTG ($10.13)
UTG+1 ($8.10)
MP1 ($8.35)
Preflop: Hero is CO with 10, K
5 folds, Hero bets $0.30, 1 fold, SB calls $0.25, 1 fold
Flop: ($0.70) 4, 7, 2 (2 players)
SB checks, Hero bets $0.40, SB raises to $1.20, Hero calls $0.80
Turn: ($3.10) Q (2 players)
SB checks, Hero bets $2.10, SB calls $2.10
River: ($7.30) J (2 players)
SB checks, Hero bets $6.40 (All-In), SB calls $6.40 (All-In)
Total pot: $20.10 | Rake: $0.98