I hate this question because in their minds, they are assuming you have left Jehovah. I always reply that I still have a love for him, still believe in him and still read the Bible.I think JAVA's reply was best :
Yes, I returned to Jehovah when I stopped worshipping the Watchtower Society. It's wonderful having a personal relationship with God--I didn't have that as a Witness
That should shut them up.