Who are you?

When we first met, you were too friendly.
Acting like my best friend in the world,
After knowing me for an hour.

After a week, telling me not to trust a friend,
A friend, who has been by my side for years.
Through thick and thin, we've been through so much.
You don't even know them, so why?
Why are you so sure that my friend is not trust worthy?

I suspected you, who are you?
How can you judge someone that you look at?
But I've known for a period of time.
My suspicions only grew more and more.

Now I know the game you play.
I don't want to be near you any more,
Because you just step all over me,
To get your heart's desires.

Stop trying to sound like you know me well,
How long have we meet?
You make it sound like you care,
But to me, you're just stepping all over me again.

I feel like I don't know who you are at all,
What else do you want from me?
Stop switching your friendly attitude on and off,
I know you're up to something.

Even though you use me,
I still feel bad when I see you down.
I'll continue to comfort you,
As long as you don't do anything for me.
Why do I still continue to be nice to you?

Just stay away, that's all I ask.
I don't know what other tricks you have,
But I've had enough of you.
Stop talking to me and just leave.