Guys, What does it mean when a guy calls a girl perfect?

Sooooo my guy friend, best friend sent me a message before i woke up. It was a really long message, reaally sweet too. He just went on and on about how special I am to him, how much he cares, how much i make him smile and happy, that im unique and he has never met anyone like me before, how im his best friend and that I'm perfect. It really made me smile. I do have a huge crush on him. Though he's said how special i am to him and how much he cares before, he's never called me perfect before. No one has. I was just wondering from a guys pov... what does it mean when you call a girl perfect?
Guys, What does it mean when a guy calls a girl perfect?
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