Love SMS, Impossible to explain how much I love you

Impossible to explain how much I love you

Girl: How much do you love me?
Boy: Look up at the sky.

Girl: Don’t change the subject!
Boy:Just do it!
…
Girl: Alright! What am I looking at?
Boy: Count how many stars there are.

Girl: Impossible.
Boy: So is explaining how much I love you.