Knowing when it's over

It's when you don't want to talk and I need you to be there
It's when you just hang up on me, its just not fair
It's when nothing I do is ever good enough
It's when all we argue about is stupid stuff
It's when you yell at me and I want to cry
It's when you make me feel like I want to die
It's when you just don’t care how much you make me hurt
It's when after all this time you still want to hang out with her
It's when you tell me to trust you but trust takes time
It's when I really don’t know if you could truly stay mine
It's when I’m laying in your arms and I still feel alone
It's when as soon as I let you go, you call her on the phone
It's when the feelings I have, I start to let go
When it's finally over this is how I'll know