If you are asking yourself (and your friends), "Am I really a writer? Am I really an artist? Chances are, you are. The counterfeit innovator is wildly self-confident. The real one is scared to death." (Steven Pressfield, The Art of War)
The person might not be who you thought they were; might have changed for the worse; but in the memories, they will always be the person you loved. it's ok to cherish those memories. You dont have to allow that person in your life now.