I can't relate to it at all, but I understand (to a point) where you are coming from.
First of all, if you truly believe the "truth" is the truth, then you should go back. If you don't, then nothing else matters, it's real life.
Second, I learned plenty of bad habits from the JW kids I knew. JW or anything else, it's about individuals and their families. I will tell you I never forgot reading a blurb from a Psychologist, who said she had never seen a more messed up bunch of individuals, than Jehovah's Witnesses. I have to agree. Also if you look at statistics, the retention rate is very low. In other words even if you go back, your son is unlikely to stay.
I have said a thousand times, my happiest thought in life is that my children never knew ONE day as JW's.