A two pair fold

[Stork]

3/6 Stud 8

A 2 brings it in, 1 fold, I raise/complete with all live (KK)J. A 5 calls and it's heads up to fourth. One ace is dead.

On fourth I catch a 3, opponent catches an ace. No one has any flushes working. Opponent bets, I raise, he 3-bets, I call.

On 5th street villain catches an ace, I catch a jack. He bets his (xx)5 A A, and I fold with (KK)J 3 J. Too weak-tight?