Fan Casting (Un)imaginary Friend

Caitlyn, who suffers from schizophrenia, has a best friend named Jeremy. There is one but-he is a figment of her imagination. They spend every free moment with each other, talk to each other, even fall in love with each other. He understands her like no one else. Her family, of course, does not see him and eventually sends Caitlyn to a mental hospital. He accompanies her during her treatment, but with each week of her stay he is by her side less and less, until he finally leaves her. Caitlyn who after many months is cured leaves the psychiatric hospital. However, every day she feels the absence of Jeremy more and more, she does not see him, she feels lonely. He has left her forever. At least that's what she thought. While attending group therapy, she meets a man who looks like Jeremy, and even has that name! This man also suffered from schizophrenia like Caitlyn, and what's more- He had an imaginary girlfriend named Caitlyn. They start spending time with each other and fall in love with each other.