First Crush

Okay so my four year old has her first crush on a boy. Is that scary or what? Did I mention that she's FOUR??? His name is Adam and he's NOT four, more like FOURTEEN! Everything is "Adam this and Adam that, Adam, Adam, Adam..." He goes to our church and he is a cute boy, VERY well liked by all the young girls. Girlfriend has her some competition! So finally the other day I asked her to PLEASE stop talking about Adam because I've had my fill ya'll! So here's what she does. The girl is resourceful - "Mommy, what's that boy's name who threw the frisbee up on the roof?" "ADAM, his name is ADAM!" ...10 minutes later... "Mommy, what's Brooke's brother's name?" "ADAM, his name is ADAM!" ...10 minutes later... "Callie, (that's her imaginary friend) Mommy said not to say Adam's name any more! Callie, stop talking about Adam right this minute!" So when there's something she's forbidden to talk about, her imaginary friend talks about it instead. The girl's got smarts! Now, what does ADAM think about all of this? He's actually very flattered and very sweet about it all. When we told him he said, "Ah, that's so sweet." Then he walked over and gave her a big hug. And now every time he sees her he says something like, "Lexi, where've you been? I've been looking for you all day" or something really sweet like that. Now I'm left pondering this insanity wondering, IS THIS NORMAL???? Is it okay for our year old to have a crush?!!!?