What do you what from me

I gave you my heart
but then you just pushed it away
so then i showed you the door
but you still persisted to stay
so now I'm here so confused
when ever I'm around you
i just feel like I'm being used
you want to be my friend
but i feel like the friendship should end
because you always tend
to leave me when i need you
so i can not be with you
can you see all your doing me is harm
just look at my arms
if you really cared
you'd chose to be there
when i need you
or not be there at all
because your never there to catch me when i fall