Hello everyone this is my first post, I've learned a lot from this community.
On to the hand.

9 handed game, 1/2 nl

UTG+2: opens to 10 ( small raise at this game, 15 to 20 is more common) he is a tight player but kind of irrelevant to this hand.

MP: calls, he has around 130 behind, loose passive player

Hero looks down at 5 5 calls.
Is my first hour at the table I stacked a player on my first hand with AK after checking the an A high flop and facing a 60 dollar bet on a pot with 140 behind. That's the only hand I've shown so far.

Villan: very loose agressive but not the good kind, he bets 80% of the time if checked to and is always pot size or overbet, I've seem him do that at least 5 times, he understands position but bets big with his entire range if he senses weakness. He is the guy I stacked with the AK hand. We are both 300 behind at the moment.

flop comes. 10 5 2

Middle position bets 10, I raise to 30 trying to bring the button along. I'm planning to bet big on non heart turns and I'm never paying off if a heart comes obv.

Button, agressive guy goes all in for 260 more.
hero??

Snap, slam dunk call. You have middle set against a bad aggressive player who grossly overbet the pot.

If he flipped over hearts, you could fold IF you knew MP was done with the hand.

But, he has too many hands with 1 big heart, and just spew that it's impossible to fold this to the described V.

Call.