People come into your life for a reason, a season, or a lifetime. When you figure out which one it is, you will know what to do for each person.
When someone is in your life for a REASON, it is usually to meet a need you have expressed. They have come to assist you through a difficulty, to provide you with guidance and support, to aid you physically1, emotionally, or spiritually.
They are there for the reason you need them to be. Then, without any wrongdoing on your part, or at an inconvenient2 time, this person will say or do something