Hi Oldbird,
Enjoy the peace and quiet for the next few weeks, it will make you feel so much better not having to worry about your Son.
My Son went to Rehab, and quite honestly it was like a weight being lifted off my shoulders, and my bank account also looked a bit more healthy too.
Don’t blame yourself, I was exactly the same as you, they make you like this, and sometimes it was the easier option.
Take care of you and keep in touch on here.
Dx