Doubtfully Yours, this child was conceived out of wedlock, while the girl was away from the society. She got pregnant, got repentant, and went back to mom and dad. Poor paradox is not looking like marriage material, as long as he is not looking like Book Study material. Most likely the girl looks at him as part of her "worldly" life, which she is desperately trying to run from.
Paradox, son't consider the JW's to be like a regular religion. A regular religion would likely be counselling both parents on their responsibilities. Will this illustration work for you? The JW's on the other hand, their whole doctrine is based on fear. IN THE SOCIETY, you have a hope of living forever. As long as you keep up on all your responsibilities and field service. OUTSIDE THE SOCIETY, you are doomed to die at Armageddon. Fear keeps people in, fear brings people back. Your sweetheart got scared, and went to the only security she could count on.