"I'll Be There"

Everyone always says "If you ever need me, I'll be there."
But when I do need someone,
when I crying my eyes out in the corner thinking of bringing the blade out once again,
when I can't find the motivation to get out of bed,
when nothing feels right and all I want to do is cry and have someone tell me it's okay,
nobody's there. Never.
So how am I supposed to believe you when you say
"Trust me, I'll be there no matter what. All you have to do is call.",
but when I do call, you're busy or ignore the ringing?
How am I supposed to tell you when something is wrong when you never listen for the goddamn ringing?