Who can you be?

Hello
have we met before?
That smile and those eyes prove there is much in store
you look familiar
is your mum, Cecelia?
When you spoke
like electricity, a spark broke
and in laughter, my heart melted like cheese
what's this that I feel?
why does our encounter, my lungs freeze
help, I can't breathe!
Can this be true?
Who can you be?
who are you?
I must know