For someone at that age I would not out myself but I would recommend that both the mother and the son seek professional help - to educate her and to help the son understand what he is feeling and going through. There likely is nothing worse than a nonprofessional at talking to someone and, likely, not having a clue as to what to say or do or recommend. It would be folly to get involved in a situation such as this a young man, an unknowing neighbor. I think that there can oinly be a disaster waiting to happen in this situation.