A basic poem, A lot of hatred

But why, when I was once so glad,
Reasons unknown why you made me sad,
All i know is that to me you are bad,
Now you know I am really mad,
Do not worry for you shall see,
On this page who you shall be,
Note that when you are dead that i will be filled with glee,
Lay low is what I would do if you were me,
Over do it and you shall die,
How i will relief a faithful sigh.

You guys out there may not know who I am talking about ( especially does who did not go singapore trip) but i will give you a clue:

Through your eye the initial is,
The person i am talking about in this.