Wow, mental health really is a serious thing in people, because it makes them act incoherently. But if he is self-employed he should know that this will also harm his work life, his professional profile and therefore his money. I think I would not have put up with so much and would have hired someone else before, because this person is not serious. First he should take medical leave and recover from his illness or whatever is wrong with him, but do not allow it to affect his customers😌.You have been very patient with him!