Sad but true Terry. Witnesses can turn their friendship with you on and off like a light switch. I think the way fading works is like this: If you prentend to believe all of the Watchtower's teachings then the people at the KH will pretend to be your friend. But step out of the role of character you are playing for a minute and you will see how quickly the house of cards falls apart.
You're right it isn't worth it.