nl100 AQ after 3-bet

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Titan No-Limit Hold'em, $0.50/$1.00BB (Titan HH Converter by Kreatief)

MP3 ($87.00)
CO ($68.44)
Button ($229.15)
SB ($70.25)
BB ($100.00) (Hero)
MP2 ($159.15)(24 / 20 / 4)

Preflop: Hero is BB with ,
MP2 raises to 4.0, 4 folds, Hero raises to 12.0, MP2 calls $9.00,

Flop: , , ( $26.5 )
Hero checks, MP2 bets $146.15,

Call or fold?