I was In also The dark about my husbands cocaine use.
The first part you write about his behaviour is exactly the same –
“He was missing work, sleeping all day, up all night, not eating.”
He twisted the truth accordingly
I thank God every day that I did not fall for his “everybody does, it go on try it”.
He tried to normalise it all the time. I guess then It would have been our addiction, to justify his own his own use