$1000 eff. V is a recreational LAG reg. Plays too many hands. Plays too many hands OOP. Plays too many hands in early positions. Flats too many 3bs OOP. All are interrelated of course. Seems to have a big ego. Likes to make moves and hero calls. Loves to talk strat at the table.

He's been opening a lot and I've been 3bing him a lot in position and of course he's frustrated. His response has been flatting my 3bs 100%.

6-handed, he opens UTG (MP2 6-handed) to $20, MP1 calls, I 3b to $80 in CO with A♣ K♦ and only V calls.

K♥ 6♠ 3♠ $187 He checks, I bet $125, he CRs to $325

For value I think he'd do this only with sets. For bluff I think he'd do this with 54s and a bunch of suited spade connectors such as 9♠ 8♠ and 7♠ 5♠ Maybe pair+FD like KQss or KJss. I have As so there should be less suited Aces in his range.So in other words I think it's either sets and a bunch of flush draws.

What should be our optimal line?