Why do i still feel this way?

Sitting in my first class
Getting taught Sociology
I begin to think of the past
What was once you and me!

You've moved on with your life
Yet i can't move on with mine
I still think of 'our' life
time has passed, months it's been nine

Seeing you happy, each and every day
It really tears me up inside
After all this time, why do i still feel this way
The day you left me, my heart died

Even after all this time
I still can't get you out my head
I know all I'm doing is making this rhyme
But without you, I'd rather be dead