Calling it quits :( Need support

First thing, big (((HUG))), mama! I know you know this, but I'd like to reiterate: you are doing the right thing! Not only for yourself, your husband, your children (your marriage & family, your future), but also for B.How dare your family shun you! If they are so superior to you, then where are their open doors for B?! POO on them. You do NOT need that toxicity in your life, nor do your children. Lean on your husband, and let him lean on you -- and, please, all of you should seek counseling immediately for your own healing.Do not doubt yourself, you do not owe this child, he is not your responsibility - you did not make him this way, you cannot "fix" him, or even help him. We cannot save them all.... Be at peace.