Live 50NL game after a home tournament. Has been fairly active in a few spots and quite loose. We are playing 6 handed with 3 of us being fairly aggressive. ~30% of hands are 3b pre. Stacks are mostly shallow as most people are buying in 40-50BB

Button Villain- ($68.50) Very aggressive, multiple 3b to isolate with many trashy hands. Has been on a run and somewhat of a card rack at this point, but have seen him 3b Q5s oop, 44 oop, and also J6o in the last 25 minutes.

SB- ($15.00)

BB Hero- ($77.50). Hero has a loose agressive image, a few 3b pre in the last 2 hours, no 4b. No real interesting hands lately, most pots taken down have been without showdown.

UTG- Straddled $1 ($22.25)

MP- ($30.00)

CO- ($10.50) Pretty loose and aggressive player, talked some with him on smoke break earlier, and is not completely ******ed. Positionally aware, and may have been steaming a bit, has lost ~60% of his stack in the last 3 hands and was in the process of getting more money out to top up.

Action goes: MP folds, CO shoves, button raises to $30 making pot $44.25. SB fold, Hero has A K

Button raise initially comes across to me as another isolation bet that keeps him from having to invest anymore in the pot and see all 5 cards. His range seems to most pocket pairs, lots of suited cards, and some broadway combos. I may be wrong but I feel like finding a fold here is impossible, and I feel hero's only options are flat (which I really dont like calling off almost 40% pre and playing OOP on the flop) and shoving.

What's is the right line here?

Based on your reads you only have 1 option in my opinion, and that is to shove.

fold he has AA

What makes you think that here?

I was trying to guess the right answer. Shoving is too obvious since there's a lot of dead money, people have been 3-betting light and it's 6 handed with aggressive preflop play. Flatting sucks of course so that only leaves folding. To make folding correct we'd have to magically be able to put him on AA or KK despite his wide range and I guessed AA because KK just wouldn't be thread-worthy.

Ship. All day.

Highly doubt Villain is 3betting with trash like you've said he has done since CO shoved and thus he has no FE. However, he should still be 3betting with way worse that AK, and even if he has a pair, the added money from the CO probably makes it profitable to ship it.

The results are even gayer than AA. I really just wondered if I made the right play here. I shoved, a cold 4b, and he snaps QQ. Flop is AKQ, and I sweat bricks on the turn and river and lose the pot LOL