How can i be happy

Everytime the phone rings, im scared it might be you
calling to tell me you love me and this time you'll be true
im frightened of commitment, it scares me to the bone,
im so scared you'll say you love me, if i answer the phone
im sitting in a corner, in my lonely room
my eyes are filled with tears, my heart filled with gloom
I will admit to some degree, that i havent gotten over you yet
but if i run back to you now, it'll be my biggest regret
you'll cheat, you'll lie and you'll make my heart break
my smile, my pride, and my love you will take
how do i know this, well lets think for a minute
have you ever told me anything when your heart was fully in it?
all the things you've told me, have been thought up in your head
instead of telling me how you really feel, you lied to me instead
yet i know if you say to me, the things you used to say
i'll fall for you immediately and you'll take my life away
so if u love me like you say you do, do just one thing for me
leave me alone, and never come back, and happy i will be