Just remember you're together w/ her for 19 years...she's caught up in the whirlwind of chemicals and fantasy...that fades pretty quickly...don't feed into it, keep detached...
My W used to go to bed at 8pm, and work 7 days a week, she also used to be sober...now she's off eating at all the nice places, staying up late, cutting work (she's self employed), and basically changing everything, coming off her depression meds, etc etc.
She blames all of her unhappiness on me-
Let them have their "fun"- protect yourself, continue to grow.
True Love is not butterflies and ditching responsibilities.
True love requires resolve, dedication, and committment