We cross posted. I'm glad you made the decision not to take your children. It's hard. My husband was in detox for 12 days. It's not easy - they limited contact so that was incredibly useful for me, but I wound up speaking with someone from the facility nearly every day, if not more than once a day. They wanted me to coerce my husband into certain treatments, we had to discuss Marchmant acting...It still makes me angry that they preach the "you didn't cause it, you can't cure it, you can't control it" then turn around and expect you to force/coerce the addict into the treatment they choose.
Don't expect her denial to end once she's out of that initial phase. It took a lonnnnggg time for it to hit my husband, even once he was in outpatient treatment and not in detox.
Good luck!