There was a movie I watched years ago. I can't remember the title, but it involved an accomplished artist and an inconsonant relationship between him and his young apprentice. She aspired to become a great artist, but her talent was mediocre. He knew that she would never become a great artist; however, he encouraged her, thereby retaining their relationship and keeping her near. It was the conflict produced by their relationship which he needed, the conflict which fueled his creativity. Once his work was complete, he allowed her to leave.
It was a very cool movie.