Like Ive seen, ive read “Frum” Books and you see things like how the father spent all his time learning (and not spend with the son)
You are also spending all your energy on this one aspect of “The Pain and the widsom of the silence” There is alot more to the book than that.
You dont seem to mention how the Rebbe really took a liking to the Less relgious boy and invited him over regulary (Except during the Zionist phase)