You never know who you can trust

I thought that you were my friend,
but what i thought was so wrong.
you stabbed me i the back,
and you took away my love.
you told my boyfriend that i cheated,
when you knew that i didn't.
like you have said before,
girls like me don't get guys like that.
but i did and you were jealous,
i was happy and you were not.
so you did the only thing that you know how to do,
and that was to break us up.
you broke us up,
then you went for him.
i guess you gotta be careful who you trust,
because sometimes the best friends will kill you inside.