Hi Becshek,
Welcome to the Forum, it’s a great place to share your worries and concerns and lots of people on here in the same situation.
My Son is an addict, alcohol and cocaine, has been in rehab twice and doing ok at the moment.
I completely understand where you are coming from with the trust issues, it’s very hard to learn to trust them again as we have been let down so many times before. The lies are the hardest thing to bear.
I would give her a bit of time to adjust to being back home, I presume she lives with you? Just try and not ask too many questions (very hard not to do), and some days they will feel like talking and these are the good times. I know in rehab they go through different processes and chat to counsellors about what they have done to family etc, and sometimes they keep journals of their daily life and feelings when they are in rehab, my Son done this and I have read it, it’s very sad sometimes, but makes you realise how they are feeling.
Hopefully she will carry on doing the AA meetings, I think this is very important for them.
There is lots of help on here and also the Icarus Trust who you can talk to.
Most important look after yourself, take care and keep chatting on here, it helps to share.
Dx