villian is 12/8/2.6 over 350 hands.Is my bottom set on the bottom of my stacking off range here? Can you guys decipher his weird line for me? WTF like that? Small bet followed up by a huge 3 bet?

No-Limit Hold'em, $0.50 BB (9 handed) - Hold'em Manager Converter Tool from FlopTurnRiver.com

MP1 ($59.10)
Hero (MP2) ($50)
MP3 ($148.05)
CO ($52.25)
Button ($81.05)
SB ($49)
BB ($51.60)
UTG ($48.75)
UTG+1 ($48.25)

Preflop: Hero is MP2 with 10, 10
1 fold, UTG+1 bets $1.50, 1 fold, Hero calls $1.50, 3 folds, SB calls $1.25, 1 fold

Flop: ($5) J, K, 10 (3 players)
SB checks, UTG+1 bets $2, Hero raises $7, 1 fold, UTG+1 raises $23, Hero wtf?