There's a guy that's perfect for me and think I want to be his girlfriend
He's the one huh? Why do you want to be his girlfriend?
Because I love him, he's cute and I love having fun with him.
It is good to love someone and like being around them. It is okay wanting to be his girlfriend for only the right reasons and not for wrong reasons such as selfishness.
I want him because I like being around him, but I'm also selfish.
As long as selfishness isn't your reason for wanting this guy, then that's okay. We're all a little selfish, but we can't let that be our motivation for love.