Problem and solution paragraph

I had a friend that he does not speak with his mother because she lied him. One day his mother told him that she went to abroad with her best friend. However, the same day a friend of him, who live in Madrid, said to him that he had seen her mother with a man walking around Retiro park in Madrid, at the beginning muy friend could not believe it, but two hours later he saw her mother´s best friend eating in a restaurant with her husband, her son and her daughter. When his mother came back, my friend saw her some pictures where she was walking around Retiro park with a man. she was eating in a restaurant in the centre of Madrid etc, so he asked her what those pictures means and why she had lied him as she could not tell him what it was happend certenly, my friend decided to stop speaking with his mother.

One solution to this problem must be his mother speak with him and told him the truth about that trip and why she lied him, but my friend don´t want to speak with her, so he don´t look at her mother, he don´t answer her called, her whatsapp etc. In adittion he isn´t livinh in his house with his mother, he is very upset that´s ehy he decided not to go to school at this moment. However, the best solution I think that they must go to a psichologist to solve this problem because I know my friend love his mother a lot.