FTOP hand

[Wingnut]

Home game, pretty loose-passive. Opponent is fairly new to hold'em and will call down with a lot of second-best hands, but generally raise with strong hands.

4 limpers + SB to me in the BB with red AA. I raise, all call.

Flop is 2c4c7c. I bet, folded to opponent who calls, rest fold.

Turn Qs. I bet, opponent calls.

River Jh. I bet opponent calls and turns over Kc6c for the flopped 2nd nut flush.

So I know there was nothing I really could've done differently, but thinking about FTOP, I was wondering which one of us made money and which one lost? I feel that I made money because I didn't ever have to call a raise, but I also lost money because I kept betting into a hand that I was dead to on the turn. Opponent lost money by not ever raising, but gained money because I kept betting into her with a far inferior hand.

So who made the bigger mistake, theoretically?