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.
20 things to live by. Love this! You don't have to listen to how other people want you to live your life. Live it your way. Do your things. Make your own mistakes. Live life for YOU while you still can.