High functioning will only last so long...My husband and I were together many years. His employer kept him around because he made alot of money for the company. They paid for his rehab twice.
He had alot of health issues, that he went to the doctor for they told him to stop drinking.
We had 2 beautiful children who after time interfered with his "drinking time".
After the violence started --which I believed could never start--- I took my children and ran.
He died on March 9th of this year due to liver failure, he was 43 years old.
High Functioning is good while it lasts, but I promise you it never does last.