CO 28/17 36 hands

i find that AQo play better with 3bet than flat in SB even if BB doestn squeez a lot (4%)
CO does not seem a reg given his stakc so i expect him to call with dominated hands

not a very good hand for my range but i have 6 clean outs + barrelign cards K J
i dont expect to be raised ip but he does...he represents 77 99 TT JJ QQ and some AA KK -(i put only one combo of each) as a value range
equity win tie pots won pots tied
Hand 0: 12.196% 11.52% 00.68% 2166 128.00 { AdQh }
Hand 1: 87.804% 87.12% 00.68% 16388 128.00 { AcAd, KcKd, QQ-99, 77 }

im far behind so it seem a fold bu why would he plays this range ip like that with such a big raise

and if he bluffs what can i do, shove?

i not good in 3bet pot vs agression flop with 2 overs, do ou have a plan

thanks have a nice day