I once met a person who had a delusional vision of himself. He barked about caring for humanity and how he's superior to the human race, because he cared about others more than the average person. Then people were nice to him, supportive, and actively showed they cared about him. He would disappear and abandon them in times of crisis and appeals for help. He would reappear again and pretend he's never done anything wrong and leech unto others once more for their support, care, and understanding. He would repeat this pattern over and over again. Others would forgive him and reconcile, but he would repeat the same injuries. Others would send gifts, cards, messages, but he "forgets" to return them.
StSanta, in your infinite wisdom, what should I do with this person?
