I don't know what to do

I think of you and I don't know why
It's the way you laugh, it's the way you cry
Could I call you up, could I hold your hand
If I told you now, would you understand
Why I can't forget it
It'd kill me if you said it
I know it's just a memory
But I've never been as happy
'Cause I don't know what to do
Does he care about you
It kills me every day
I just wish you would stay
I think of you and it makes me sick
Where are you tonight? I can't stomach it
Do you wanna stay? Do you wanna go
Would you give it up? Would you tell him
Nobody else can see it
I know just what you needed
How do you go without it
I don't wanna talk about it
'Cause I don't know what to do
Does he care about you
It kills me every day
I just wish you would stay