Things in this world have their own destiny. Human beings are unpredictable and cannot change.
If knowing each other is evil, staying together is sin, so we contract sin.
If meeting is fate, falling in love is fate, so we will eventually become fate.
No matter how time passes, even if we are incompatible with each other, so what, I still love you. This is a fact that I cannot change.
My love for you will never change, and my love for you will remain the same for thousands of years.