I am not sure how to answer that one. You need someone, that is a fact, you do not need any sort of turmoil in your life while trying to reach some level of sobriety, it is a difficult journey and contains many many pitfalls, some caused by circumstances beyond our control some caused by our unwillingness to do whatever is necessary to reach our goals. We quite often sabotage ourselves in ways that we do not even realize. There may come a time in your trip that requires that you do something that may be quite painful, I personally have had to do so and would feel pretty safe betting that it is something that almost 100% of us have been required to do, how that manifests itself is something that I cannot even guess in your case since I do not know you well enough, but this person who is helping you may know and may be able to help.If they are involved in AA and have some sobriety behind the and have a good strong program they can be a tremendous help. If they are involved too closely they may have some misgivings but the fact that they offered says that they believe they can handle it... but your feeling in that matter are the deciding factor really, if you do not feel comfortable with that then maybe they know of someone who can do that instead.
This group has been quite sharp and there is a lot of long term and apparently strong sobriety here so hopefully someone with more smarts can jump in and add to this discussion.