I took him away from you
I will admit, it was wrong of me

I may have lied to your face
And told you we were best friends

I kissed him behind your back
Literally

Shouldn't you be thanking me?
If it was not with me, it would have been some other ****

I seduced him
As easy as cutting a knife through warm butter

Shouldn't you be mad at yourself
Were you not the one who could not keep him?

Oh but look at the bright side?
You were taught an important lesson today..

To watch that back of yours, you never know when someone may decide to stick a knife in it.

Oh...you mad,  bro?