Who?

It's not that easy with you here
But I know I want you to stay.
See this could be us in a few years
But just admit you like to play
It's like everyday,
I'm kicking rocks.
I could fly away,
But you got me at a complete stop.
How do you manage to keep me going
But somehow you keep me from going?
See you distract me,
But I'm distracted without you.
I don't know how to focus,
Baby, teach me how to.
'Cause I'm standing still again
But if you love me
Just like the way that I love you
I wouldn't mind
A little comforting from you.
Why do I let you in my head?
And I gotta go sometimes,
But you're always on my mind.