Yes, you cross his mind from time to time. It doesn't mean he will get back with you though.
He told you to leave him alone because he doesn't love you the same way anymore.
There are times he will miss you, and wonder what you are upto. Times when he will worry if you are okay, or if you are happy. You two shared 8 years together... you will always have that special place in his heart. But trust me, it doesn't mean he will come back.
Let him go...
I know you are still holding on... but do you really want to be with him again? someone who broke up with you? Who pushed you away... someone who told you to move on... ?
Do you really want to be with someone who doesn't want to be with you anymore?
Move on... one day at a time...
Everything happens for a reason.