Advice on this hand

Ok, clearly this hand sucked my ass...and I know I played the river wrong by capping. But, was every other round played right and this is just a sick beat? Or did I fuck up somewhere playing this donk.
*** HOLE CARDS ***
Dealt to Hi Riser [As Ac]
jagrbomb: calls $1
Michael01266: calls $1
Hi Riser: raises $1 to $2
alexeimartov: folds
tical212: folds
jagrbomb: calls $1
Michael01266: raises $1 to $3
Hi Riser: raises $1 to $4
Betting is capped
jagrbomb: calls $2
Michael01266: calls $1
*** FLOP *** [9h Kh Ad]
jagrbomb: checks
Michael01266: bets $1
Hi Riser: raises $1 to $2
jagrbomb: folds
Michael01266: raises $1 to $3
Hi Riser: raises $1 to $4
Betting is capped
Michael01266: calls $1
*** TURN *** [9h Kh Ad] [3c]
Michael01266: bets $2
Hi Riser: raises $2 to $4
Michael01266: raises $2 to $6
Hi Riser: raises $2 to $8
Betting is capped
Michael01266: calls $2
*** RIVER *** [9h Kh Ad 3c] [7h]
Michael01266: checks
Hi Riser: bets $2
Michael01266: raises $2 to $4
Hi Riser: raises $2 to $6
Michael01266: raises $2 to $8
Betting is capped
Hi Riser: calls $2
*** SHOW DOWN ***
Michael01266: shows [Qh Jh] (a flush, King high)
Hi Riser: shows [As Ac] (three of a kind, Aces)
Michael01266 collected $52.50 from pot
*** SUMMARY ***
Total pot $53.50 | Rake $1
Board [9h Kh Ad 3c 7h]
Seat 1: alexeimartov (small blind) folded before Flop
Seat 2: tical212 (big blind) folded before Flop
Seat 3: jagrbomb folded on the Flop
Seat 4: Michael01266 showed [Qh Jh] and won ($52.50) with a flush, King high
Seat 5: Hi Riser (button) showed [As Ac] and lost with three of a kind, Aces

He is a very aggressive player that, in theory, should have +ev but have huge swings. You however just lucked out.

I lucked out? I got fucked in the ass. But, over the next few hours I got it back from the jackoff.

Exactly what I said...you lucked out...albeit getting "fucked in the ass" at the same time. Getting your money back is good though. See what I mean about the swings?

you played the hand fine except on the river....that's a definite check-call. He had to be chasing something there and the river brought a scare card.