Why should I care when you don't even care about me

Why should I think about you when you don't even think about me even for a seconds

Why should my heart pounding for you when your heart don't want to pounding for me

Why should I missing you when you didn't miss me at all

why should I searching for you when all you think about is running away from me

Why..??

Can you tell me why..??

Can you explain to me..??

Even myself can't explain why should I do all of this