Friday’s still a long way off, wait and see what really happens after Friday.
Mine had an appointment in October. He still hasn't gone.
Peacesoul (love that name, btw), you don't have to do anything you don't want to do. If he goes, and if the treatment center offers family support, you can choose to participate or not as you see fit. If you choose to participate, it will be part of YOUR recovery, not his. I've started my own recovery and left axb in the dust (or the booze, or whatever). And yeah, I got the same quacking about "walking out on him" and "breaking promises" and blah blah.
Take care. Hugs to you and your daughter.