Who? Katy Perry? The last time I checked Katy is still with John Mayer.
Oh, well I have no clue, anything is possible. Did you ask her?
But she is in a relationship with John Mayer.
She's giving young girls great advice in that quote!! She's a woman .. not a young girl.
Your question wasn't clear.
But if the girl you like is your age ... you're both too young to be in a "relationshp" ... that's probably why.