A/N: Just my personal opinion on why Snape did what he did.

It's not like I wanted to kill him.

This man took me in, gave me a job, trusted me like no other person ever did, and how did I repay him? By murder.

That little brat's mother put me up to it. She made me make a vow an unbreakable one at that. That vow was dragging me, I would have to follow it no matter what.

I promised to finish what Draco was sent to do if he was to fail. And he failed. So now, I am the one with his face on the wanted posters. I am now one of the most-hated people in the wizarding world.

I promised to protect Draco in any way I could. That is why I fled with him. I would have rathered to stay, to fight against evil, but I was now a wanted criminal.

I promised to watch over Draco, that little brat. It was like I was being pulled by some unseen force to know everything that he was doing.. That is how I knew he was in so much pain in the bathroom, caused by that Potter child.

Oh, Potter. To find my Potion's book. I thought I had hid it from teenagers like Potter.

He would have never aced Potion's this year if it wasn't for my book. If I was the Potion's teacher still I would have realized right away what was going on.

He never was that smart.

I knew he had it, right when he started acing Potion and that fool of a man, Slughorn, started bragging about his star pupil, the "chosen one", the "boy-who-lived", Harry Potter.

That's what made me angry. That he was just like his father, the man who picked on me for so many years. That he would take what was mine and use it against me.

Potter is so much like his father. I hated his father so it is just natural that I hate him.

And since his father hated me, it comes naturally to him to hate me back. And I must say, I wasn't the nicest to him that I could have been.

And being like that has ruined me.

It made Potter suspicious.

They will never trust me, not even if I tell them I was under a vow.

If I had refused to take the vow that night, I would have been immediately turned over to Voldermort and killed. After all of the information that I knew was taken from me.

If I could take it back, I would.

I would rather die than feel the way I am feeling now.

A/N: Please review and tell me what you think of it even if you hated it.