I think that has actually already happened with my cousin's kids, kind of. There was a time where I was consistently called to watch them, take them out for their birthdays, take them to sports, etc. However, the kids clearly started showing more love and affection toward me than even their father, whom was never really around because he just wasn't a big family man. They would want to hang out with me, a cousin, more than their parents, uncles, aunts, and even own friends. Now to be fair I do see them still. My constant requests to come over have been cut off, but they did not go so far as to never let me see or hear them again. If that has happened to you I can't imagine the pain. I know the kids still want to see me because of how they act the times I do see them now and their constant imessages. It hurts to be forced away from a friend, someone whom I platonically love very much, which is what it amounts to for me. It must destroy you to be forced away from someone you deeply love romantically. Especially when they love you back and it is out of both your hands.