Zack,
I think that's a pretty common reaction. My wife said the exact same thing. She also said that 607/1914 isn't important and that the JW theology isn't based on chronology at all. That's because she knows she can't win a debate about the date Jerusalem was destroyed. I also got the, "your too smart for your own good" and "you think too deeply" remarks. She actually said we should just have faith, but when I said we critize others for saying that very same thing, she just gave up.
I think what you're experiencing is the cult programming. Its pretty scary to see an otherwise bright intelligent person go into JW mode.