Yes, as a writer you have to be willing to kill off a character but I don't know it I like the word kill, let go, let them grow, find their own path, end of their story, may be better because the story has to move on and in the story, you as the author have to know what the end result is going to be and make the call.
sometimes it is better to have them in the wings to come back latter.
sometimes it is better to have them in the wings to come back latter.