Trauma

Trust me you are blessed if you have family and friends who care about you most of the time people do not get these things in their life. All they get is trauma from the unconditional situations, where people laugh at her, make fun of their every single action, gossiping about her. Every time she shows up she faces deep criticism. Think every single time when you are trying to make friends, those people are not even responding to your effort but making you a laughing stock. 

Well this things become noticeable when the person is present with you but thinking something very deeply in short you can say physically present, mentally absent. These traumatic kind of person are not so social or they would just try not to be in contact with anyone. These people suffering from heavy trauma stay lonely, loneliness becomes their new normal. They try to completely detach themselves from social world and try to avoid communication. All people don't get friends or family to whom they can talk about anything. These kind of persons become silent or unstable after the tragedy. They fail to give any output in regular conversations called sabotage. These people could cry over small matters, projects small problems as big. These people need someone to talk or care because they are often traumatized because once they have made their efforts so hard thinking they won't lose but ultimately lost, this hurt their believe. Try to make normal friendlihood conversations with them. Only this way they can be normalized it could even take a year but this process will make them feel better.