Here are some choices that maybe you would consider:
"Nobody likes you
Nobody cares about you
Nobody thinks you're special
Well I am that nobody"
"There will always be a 'what if' when it comes to you"
"Somebody loves you but is too afraid to tell you"
"You wanna know who's the kid I like? Read the first word again."
I wish I could tell you I love you but I'm too afraid our friendship will be ruined if you don't feel the same way"
"You're the 'nothing' when people ask me what I'm thinking about."
"Stop being so cute. It hurts ;)"
"Don't you think it's annoying when people ask you who you have a crush on! I have to say your name every time!"
"Look, I know that in your eyes I'm a nobody...
but in mine you're that special somebody."
You have no idea how hard it was to admit I had a crush.
...But you were all worth it."
"Why did you have to come into my life? You're so amazing it kills me."
"I've always wanted to say this...
1. ...see 5
2. I feel bad but it's 6
3. Actually see 7
4. I JUST CAN'T SAY IT it's on 8
5. Um check out 3
6. Y'know what, it's on 4
7. Sorry it's 2
8. Go see 9
9. Ok ok it's on 10
10. I LIKE YOU"
"You know that crazy feeling? That feeling that there's this person you just can't live without? Well, put it this way:
I have that feeling for you."
"Just when I thought I'd never know love I met you."