How about this:
Well, by your response I would say that you haven't at all moved past a worldly and shallow attitude. The Bible says that "anybody who doesn't provide for those who are his own, and especially for those those who are members of his household, he is worse than a person without faith." I'm not sure how any God would find your hatred toward me acceptable. What do you even mean by living a "worldly" life? Oh, I guess you must mean taking drugs and sleeping around. Yes, of course, because if you're not a Jehovah's Witness, you must automatically be living an evil and self-centred life. Give me a break.
Don't talk to me about study. I researched witness literature for two years before I realised I had sadly been following something that was incorrect for my whole life. I had no choice but to leave my friends and family. I'll never live a hypocritical life, and if my family cut me off because they are told they have to, then I can't do a damn thing about that. I would love to hear about your study efforts. It would be impossible to regard the Watchtower as truth after doing legitimate research. Or did you mean you re-read the information you have been taught since childhood?
"No one should be forced to worship in a way that he finds unacceptable or be made to choose between his beliefs and his family." Awake! 2009 July, page 29. What an ironic statement. And I definitely agree. No one should be made to pay the price of their family in exchange for truth and freedom, but if that's the choice I need to make, I would make it a hundred times over again. How extremely awful of you to talk to me like you did in that email simply because I don't believe what you believe. If you want my heart, I may as well cut it out and hand it over on a plate. But you do not own my heart, it is alive and well and beating better than it ever did.
You should be ashamed of yourself, speaking to your sister like that. You will see that one day, but maybe it will be too late.