You aren't meeting the definition of a friend.

Sometimes you make me really mad
just the thought that you would even wanna make me feel so bad
i'm so sick of all this crap
i just wish that i could have him back
but instead he's with you
and i don't know what to do
i just wish that someone was here to help me get through
i'm so tired of always crying
because on the inside it makes me feel like i'm slowly dying
i just always see you guys together
and i keep thinking "this feeling will last forever..."
and that this pain will never end
and then we won't be friends
i don't want things to end that way
but i don't know how much longer i can stay
can't you see
that your ruining me
i can't stand the thought of you guys together
because it always ends in a forever
he can't be your guy...
because inside i'll just die