Love them. When you send love and healing to one, you protect yourself as well. That amazing force moving through you to them, prevents any negativity from coming back. Just continue to love them. Judge them not. Baste them in the love you know so well. Perhaps it will soak in and will heal them. It is their choice.
How does one deal with someone who is jealous, hot tempered, possibly delusional, paranoid to the point of seeing many things as some sort of conspiracy theory and sees “evil” in everything? What do I do with someone who attacks me verbally? Aside from completely avoiding them and sending them love from a distance what can one do?