One if for him two if for me

I'll drive by your house sometime tonight and hope I can see you again
Have a light in your window if you are free one if for him two if for me
If he's there with you I'll drive round the block he might leave before I get back
Have a light in your window so I can see one if for him two if for me
Each time you leave I take this place but we both know I can't stay too long
So have a light in your window so I can see one if for him two if for me