Val,
I think that her mom got 'played' by her. JMHO
I've met the parents multiple times[they're divorced] and mom always seemed to dote on and spoil her even though she was like 40.
Dad was always a little less doting and you could tell he just wanted her to get her sh*t together.
He's a 60+ YO that still goes out on HVAC installs[he did ours last summer].
We started out dealing with her on our HVAC and I got fairly frustrated due to it being an emergency as we had renters about to be en route from Michigan staying for 2 weeks.
I got her dads # and dropped her out of the picture.
I've seen that many, many times.
Just as addiction is a real thing, so is enabling.
Sure sucks when one is trying to help a friend get clean or sober to have the family (or friends) screw things up. Had a friend on his third DUI get told by his boss he didn't need to quit drinking, just need to learn when to call a cab.