I know you have an appointment scheduled, and that is going to be a great help. I wanted to agree with this poster though.
No matter the circumstances, the behavior from your son is just not acceptable. I don't care how miserable he is when it comes to the baby, he should never be allowed to lay hands on her. Period. The problem is that there is a difference between understanding his anger and allowing him to act upon it. You have not only chosen to allow the physical behavior, you have taught him that he will eventually be rewarded with the removal of his sister. Your daughter will learn that she has no voice, and if she uses it, she will be sent away. In my home my kid would have a better chance of breathing underwater than getting a sibling left with a sitter after having laid one finger on the other.
The issue that compounds the problem is your husband. He not only places his personal needs and wants above those of his family, he shows approval of he little one over his son, and how do you think that will affect your boy? He will do the same, it is what he has been taught.
Mama- you need some tough love, and you need it fast. You are in an untenable situation. Frankly, I believe you would benefit from counseling, and your boy would benefit from what you learned. I have a coworker whose husband is like yours, although he is abusive to boot. He prefers one child over the others, and those kids are a cluster. My heart breaks. I truly mane this with the best intentins, and am in no way criticizing you. I think you have way too much on your plate.
Absolutely. I would toss them both together and use the trip as a bonding trip. I would not show DS that his sister is disposable if he wishes her gone.
Yeah, DH is never going to change. I figure if you cannot change the man, you either need to figure out how to live with the structure in place, and do so in a manner that is a positive impact on the rest of the family. DH could go on his hunting trip over Thanksgiving, however there would be 'Ohana for me and the kids. My neighbor developed a very close bond with my family when her first H placed his fun over the needs of his family. He resented the time she spent with us, but he could not have it both ways: galivant and leave her alone on holidays, etc, or stay home with her. Eventually she booted his carcass out, and no matter how he tells the children we are just "the neighbors" they tell us we are their 'Ohana.