<human>: Some background, my mom was a drug user when I was younger. My dad divorced her after it got out of control. She lost a succesfull maid business because of her habit, and she lost custody of my siblings and I. She got clean back in '98 and has sinced remarried and done well as a retail manager. She recently leveraged her good track record as a great manager into a good job as a general manager for a local sunglasses retailer (she oversees a couple of branches). She also succeeded in getting joint custody back when we were still minors. 

I had suspicion that she had recently started using again when my sister (who was a joint account with my mother) said that my mom had taken money from the account and had promised to pay her back, but hadn't done so yet. My mom had been very responsible with her money until then and had never borrowed money from her kids before, so I immediatly became suspicious but didn't see any other signs so I figured it was probably just the bad economy and left it at that. 

Then my sister visited my mom unexpectedly one day earlier this week and after exhibiting some strange behavior, my mom came clean and said she had smoked crack once recently, but only once. My mom also admitted to skipping out on work on Black Friday (busiest day of year for retail) and didn't know if she had her job still or not. Little sis kept her cool until she left  her house and came and told me. 

So that's where we are now. I assume that my mom has used more than once, and that my stepdad (who is also a recovering drug addict but who has been sober for a while as well) is also using now. I'm hoping that we've caught it a the beginning of the downward spiral and we can stop it before her life becomes to affected again. 
I'll be meeting with her soon (tomorrow probably) and wanted to know what reddit thinks I should say. 

That was way longer than I intended. And I'm sure there are lots of spelling/grammatical errors. Disregard those. Or regard them. Doesn't matter to me either way.

Could you distill the essence of the text into 1-3 sentences?
<bot>: Mother is drug addict, has ben sober for over a decade, has successful career, admitted to using crack recently, what should I say when I see her about it?