If she says she's not an alcoholic then clearly she isn't ready to get help. Her first priority is alcohol. Now you are aware of some of the lies please know there are thousands you don't know of throughout these years and currently.
Even though my XAB quite drinking and pills the lies didn't stop and he had been lying, hiding, sneaking, manipulating, deceiving, stealing for so many years it was a habit of its own and a learned behavior. He admittedly feared he couldn't or wouldn't get what he wanted if he let those toxic behaviors go as they worked so well for him.
The addictions are all but a symptom of the BIG underlying issues of self hatred, low self esteem, etc...
Our love and support can cure it...in fact it can get in their way of their recovery as we keep giving them a safe place to fall.
So tough, gut wrenching. Addicts can hide a lot for a long time but since the disease is progressive it eventually all comes apart for them.
My X used pulled for over 15 years and held an executive position at a huge company and he drank as well.