Dear Severus Snape
Could you tell me how are you so cold!?!
After careful consideration I have decided to answer your post.
I am so cold because I have to be. I risked my life in secret for Harry Potter. I held my one true loves dead body in my arms. I had to kill the one person who knew my secret.
It may appear as cold to you, but let me assure you the fathoms of emotions I truly feel reach deeper than you will ever know.
My disconnection from emotions allowed me to conceal my true intent from the dark lord, thereby saving Mr. Potter and Hogwarts.
Do not desire to achieve this level of Occlumency. It requires a lifetime of dedication and often the result is only ruination and despair.