Lyric Get Up, Get Out!

Why are you laughing as if you re my friend?
I m gonna slap you again and again and again
I like you better when you go away
Gotta get up, gotta get out, gotta get up
You gotta go away
you were the love of my life for a day
I kind of thought that
You d feel the same what...No way!
Consider you a figment of my imagination
But will you every go away?