If you’re falling in love with someone who’s “perfect” you’re probably falling in love with someone who only exists in your head and not the real person. That’s a disservice to everyone involved.
I've heard a 'crush' being described as an absence of knowledge about the actual person you are fixated on. It reminds me of the story Robert Pattinson told where he took his stalker out to lunch, bitched about his life for an hour, and then never saw her again!
If you're falling in love with someone who's "perfect", you're probably falling in love with someone who has an undiagnosed mental illness and is very good at pretending to be the person she thinks you want her to be, for a while.
She will spend the next 6 years making your life very, very miserable.