You fell for your wife really fast too. And you admitted that may have not been done with your eyes wide open. Sure, I believe you are infatuated, infatuation is different than love. but you are still wrapped up in your exW, still would take her back if she really had changed..... that is not a good basis to start another R on. But you will do what you will do.
Go back to when you and your ex met, moved fast and you fell head over heels. You love feeling of infatuation, which can easily been mistaken for love. Changing these patterns would best serve you as to not end up in the same situation in the future.