I truly believe in this. There are people who leave an impression in their time with you. There may have been intense love, friendship, family ties or earthly drama, of mistrust, deceit, betrayal or abandon. But the reason it affects you, is because you, yourself, asked them to do it, so you could learn something.
No human encounter is random, especially the ones you have deep connections with and learn from, as they are dear to you not only in this lifetime, but beyond as well. In light of this, don’t think badly of those you were close to, and don’t see anymore. Know in your heart that you will meet again in another world, with the same love, where you return, having learned the lessons you set out to, from this life.