Long story short, my main character is insane. I've done plenty of research and I believe I'm avoiding clichés with him. I'm worried about his friend though. Initially his friend doesn't know he's crazy and by the time he learns he is, they're already very close. The friend is isolated in his home (doesn't have a relationship with his parents, only child, etc) so he's yearning for some type of companionship. Is it cliche if he sticks around the crazy one despite it being potentially dangerous to?