Hi What Now, I have the same faded status as yourself and personally view the way that I was dropped like a hot potato as very telling of their true motivations. They have no reason to shun you or treat you that way, you certainly didn't deserve to be reacted to like that, even by WT rules, it just seems to be how modern JWs love to act.
As a stay at home mum have you looked into playgroups and support networks? It's a great way to make friends and you instantly have something in common! Even going to the local play park at the same time each day/week you'll get to know other families.
The current changes definitely appear to be keeping JWs busy, but doing what? Being loving and caring to others or blowing their own trumpet? All that glitters is not gold. It seems you're more frustrated at not 'moving on' socially than bitter, but chin up, it'll happen!
As for your son not behaving like those at the kh....nonsense. All young children express their frustrations at times, and no one should be making you doubt yourself as a parent.