Was nothing you said back then true?

I haven't been able to stop the crying
Ever since you told me it's my fault you felt like dying
I knew it was my fault anyway
Even before you said today
But the words still hurt
Still make me feel like dirt
How on earth could you just pretend
That all along I was your friend
You're messing up my head
Making me wish that it was me that was dead
You didn't think that when you were telling me I was the best
When I was crying against your chest
So what did I mean nothing to you?
Was nothing you said back then true?