If he is sincerely interested and wants to see you again, ask him to read this book in the interval. After doing that, he must decide for himself whether he wants to go on. (Page 95, Alcoholics Anonymous)
In AA, we get approached for sponsorship. We lay out what is on offer. What is on offer is what is in the book. The sponsor is the guide. If the person seeking sponsorship is very definite about having you sponsor them, as opposed to anyone else who uses the same approach, be very hesitant to say 'yes'. If they would be disappointed if you said 'no', be very hesitant to say 'yes'. It really does not matter particularly who is serving the food; it is the food that counts. As long as there is a competent guide, progress is between the individual and God. If there appears to be a personal interest in you, i.e. the reason is anything other than technical (i.e. length of sobriety, demonstrated understanding and competence, common range of problems), this reason must be set aside. Often, a swift conversation can settle this once and for all.
But if you later encounter difficulties, you will often find that some personal attachment was at play. Resistance to the content combined with a desire to continue the relationship is the usual hallmark. If this happens, halt this at once and redirect.