A song about you

The first time I saw you
I didn't think you were special
But now I've realized
That you're the one I want to grow old with
I want to take you out
I want to do everything right
I'll take to your favourite shop
I'll even let you use my favourite coffee cup
Oh you
When you look at me, you make me feel so glad
Oh you
When you smile at me, you make me feel so nervous
Cause you're the one I adore
I'll let you use my coat when you're cold
I'll do anything for you
But now you're probably in bed
Sleeping with one of my best friends