JWs do not have normal relationships they are taught to only have conditional ones. JWs will be interested all the time there is a possibility that someone will convert but have no qualms about dropping someone who will not. This is learnt behaviour from the organisation where many people who have been born into the organisation know nothing different.
I would be very cautious about letting your children get involved in any way. The pressure begins very early as does the isolation from those outside the group so that the only place you can eventually find acceptance is within the organisation. Whilst children have a foot in two camps they do not really belong to either. They are seen as odd by other children because of their religious views and they are not accepted by JW youths as they are still having birthdays etc and don't appear fully committed to the faith. Joining a high pressure group is not a decision a child should make. My mother joined when I was 3 my father was never a witness and yet being allowed to go to meetings led me to get baptised and stay within the organisation for 40 years. Present your children with options and choices never give up on them so that they can have a proper life.
With your wife keep communicating .