I didn't understand anything then I went online to search for an explanation. Still, I wasn't satisfied with the story. This might be because of a predetermined view of how a movie should end. Artists have their freedom, they don't have to justify their art until it violates the law. But in the end, I have to justify the moral(if it has one) to myself and the possible exception I got was '17'.
The main three characters are young and should follow their passion and explore themselves before getting committed. They are still friends(I guess) and all of them had a happy ending. If any two of them get committed they might end their life in that Orthodox land. Even though the ending couldn't meet our expectations but it was what good for three of them