Your wife is not haunting you! Your not crazy either. It sounds to me that your passed wife was the love of your life, probably your soulmate. (Which is a bond that is hard to break on earth or in heaven.) I'm sure she is happy that you are remarried and you have found happiness again. Believe me she's happy!!! Is your new wife aware of your passed wife's presence? It's my sense that your passed wife is just looking out for you and you should try to talk with her. Just start talking and listen closely to the little voice in your head. She may just be trying to give you a message or say good by if the opportunity was there at her time of passing.
Your okay, it's the rest of the world that's wrong.