Meaning of "Yo más guapa"

Question

What's the meaning of ¡Yo más guapa! in the following conversation?

A: - ¡Toma, te quiero!
B: - ¡Yo más guapa!

I googled the phrase and it seems to be some kind of slogan. I'm not sure though whether it is somehow connected to what is meant here.

Answer 1

You are missing a comma there. The phrase should be: yo más, guapa.

guapa means good looking and it's a common way to affectionately address a woman in Spain. So the conversation goes more or less like this:

A: - ¡I love you!
B: - ¡I love you more, gorgeous!

Answer 2

I think it may need a comma

¡Yo más guapa! _{Me more, cuttie}

It is not an slogan, but a colloquial way of telling someone that you want or deserve or need something more than the other person.

A:- No llego a fin de mes. Necesito otros 500 euros

B:- Yo también, guapa

In that context guapa is not a colloquial way to refer to somebody, but means literally "beautiful".

A:- ¡Te quiero!

B: - ¡Yo (a tí) más, guapa!