Marcos,
I emphathize with you. Before I was divorced there were times when my then wife would just take off stating that she was going to the shopping center or something. She'd be gone for 5 or 6 hours before returning home. I came to find out later that she was at a JW friends home. As with you, my ex also took my two children with her to the KH, or wherever she went. Luckily, nothing took hold, and both kids, now grown, are normal and leading decent lives without the JW's or WT Society.
As I understand it, and not being a JW I'm not totally clear on this (can a ex-JW on this string clarify), JW's are allowed to lie to someone, including husbands and family, if they feel a person, or persons, is not authorized to know something they consider WT or JW proprietary. I'm positive my ex lied to me quite a few times and felt, at least from I could tell, quite alright about it. The JW's/WT packaged, wrapped and bundled my ex-wife up quite well.
It's funny, but I still love her and always will. After divorce she did not move too far away, and when I run into her from time-to-time, she always interjects somehwere in our conversation that I'm going to be sorry because the end will soon be here.
The best to you Marcos. I hope everything works out ok for you.