In today's climate of the rooms my experience is that sponsors are more typically people who have done the steps and are willing to show others how they were taught. They are not a baby sitter nor do they report back to anyone on their sponsee's progress. Someone mentioned Al-Anon, that is a good suggestion for any loved ones including a boyfriend.
The book of Alcoholics Anonymous mentions this; "Perhaps you will want to take the man into your home for a few days. But be sure you use discretion. Be certain he will be welcomed by your family, and that he is not trying to impose upon you for money, connections, or shelter."
I know of no one who has done this.......especially with a family at home.