One More Checkup -- AA otb

[gaming_mouse]

Villain in this hand is solid LAGTAG. He's been 3betting me v light in steal situations. Also, he doesn't trust me -- in a previous hand he 3b 44 after I opened from the SB. I c/r a 763 2flush flop. I then b/3b a turn which pairs the 7, and he capped it and then checked behind the river -- my fd was no good. I had not seen him do anything like this aside from that hand though.... normally he is more conservative.... his standard line would probably be call down my turn lead there, or else to fold to 3b, or else to calldown the 3b. So he either got tilty or just made a sick read.

Anyway I open otb, he 3b, I cap AA.

Q39 (2 diamonds)

He bets, I call.

Turn is some blank.

He bets, I raise. He now 3bets and I calldown. Is my play here completely standard?