All I know for certain is what is here and now. My children are only young once. When they are grown it's over. When my nieces, nephews, and friends children are grown I will never get back the time when we could have enriched each others lives. This is one of the many reasons I mourn the shunning policy. Life is precious and short, and we waste so much time with nonsense that it's depressing.
I know how you feel. Two of my friends are married now; but I wasn't invited (or even informed) about the weddings and I haven't met either of their spouses. If it weren't for Facebook I wouldn't know anything.