Messed up the title lol, hand is AKK not AA

playing HU with this fish.

He has one betsize postflop (POT)
at the beginning he was kinda passive, but now he is down a few buyins and his 3bet is over 40%. I saw one hand where he 3b KJ83 rbow 150bb deep. Checked down 3 streets on an Ace High board.

Postflop he doesn't seem super crazy, a lot of one and dones. x/x Flop, POT turn, x/x River. stuff like this.

My Question is on the flop, the SPR is abou