Why do you have to come back?

After 10 years of saying goodbye
You came back saying hi

Without you, my world is blue
I was able to move on and that is true

I could not believe seeing you now
My heart beat again remembering our vow

Everyday, I am thinking what if we fought for our love
Destiny might have changed from above

But we could not be together
So many walls I have to surrender

Why do you have to come back and let me in shock?
It makes my life difficult and please do not soften my heart that became a rock