What is lost for you will be lost forever.
What has been there for you only remains there.
Those who have been hurt by you will disappear from your life with the passage of time.
...
When you find out that the person you love is her and not her. She also leaves.
When you realize that there are no more ten years between you, you will realize that sometimes love is always there for you.
When you find out that she doesn't love you anymore either. You will find that your heart hurts like a thousand arrows piercing your heart.
So, when there is such a being beside you. Even if you don't love her, please don't hurt her.