Withholding the information of a potential mental health disorder from someone who has committed to helping would be extremely irresponsible, let alone disrespectful.
I would suggest you read the chapter "Working with others".
A little excerpt from the Big Book, chapter 7, first edition:
It may mean the loss of many nights' sleep, great interference with your pleasures, interruptions to your business. It may mean sharing your money and your home, counseling frantic wives and relatives, innumerable trips to police courts, sanitariums, hospitals, jails and asylums. Your telephone may jangle at any time of the day or night. Your wife may sometimes say she is neglected. A drunk may smash the furniture in your home, or burn a mattress. You may have to fight with him if he is violent. Sometimes you will have to call a doctor and administer sedatives under his direction. Another time you may have to send for the police or an ambulance. Occasionally you will have to meet such conditions.
The calender has changed. The illness of alcoholism hasn't. Nor has its most effective treatments. What we did then, applies now.
Never underestimate the ability and resources of a network of AA members on a mission to help. A drunk on their own is hampered by their illness. Sober AA'ers don't have that handicap.