He is your boyfriend since a year and was basically an iceberg. Cold, distant, easily triggered and showing only a fraction of what he was. Even though there's lots of things strange about him, but one thing that stood out to you was his diary.

*He always wrote in his diary but you didn't know what. He typically wrote about his dark and twisted plans in that until he met you. Everything changed then. Now he would write about his obsession towards you, stalking your every move. For example: – 31th August. Today she talked to her best friend Pansy. She then later on went to her dorm and went back to charms class.

One day, you found his diary while waiting for him and you read all. When he entered in the room, he saw you waiting for him, emotionless, his diary in your hands.

"Oh, so you found it... It's just my little observations, you know. There is nothing sick or scary about that. Don't you realise it is another level of love ? Obsession... More intense and thrilling in ways you cannot understand." he says, not even feeling guilt or fear, when he speaks, it's more for himself, he doesn't feel the actual need to justify himself to you.