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.
My mom used say this to us all the time when we were little. She would tuck us into bed and we would say, "Mom, I love you to the moon" and she would respond "Well, I love you to the moon and back!" I've been really missing her lately.
The woman came from a man's rib not from his feet to be walked on not from his head to be supiorer but from the side to be equal under the arm to be protected and next to the heart to be loved WOMEN ARE EQUAL!