I'm with "not a....". I have no idea how you can read anyone online at the flop? When he's raising all day on 5-7 he's got to have a real hand at some point. The "stop and think about it " move doesn't mean much to me. In fact, it's one of the most predictable online tells of a real hand. The fact that he came over top with nothing doesn't mean squat when you have nothing too. I think your 10k on the flop was a mistake, and certainly the call on his raise.
If you flopped a set of deuces and went anything less than all-in at the flop, the result would have been the same and then you could have sang bad beat dirges to the bartender.
A-K is really not that good without a flop in your favor. Let go when it doesn't come home.
Whenever you say, "They're not supposed to do that" you should immediatly finish the sentence with "isn't that great?" If you cannot append your statement that way, you're going to make yourself miserable.
Embrace their bad play, don't mimic it.
To tell you the truth, I don't think your first bet $10k was bad, actualy a decent probe, but as soon as he came back over you should have cut bait.