Your boyfriend was Draco Lucius Malfoy.

You two have been dating since 4th year, and it's now 6th. He was usually so sweet to you, although he wasn't sweet to others. He was affectionate in private, but not through words. But ever since 6th year started, he's been becoming cold and distant. You've barely saw him.

And of course, he wasn't returning your calls either. You were hurt and worried.

One day, you went up to the Astronomy tower, to get some fresh air, when you saw the familiar white haired boy scratching on his left forearm, hard enough to hurt. That's when you saw it. The mark. Not any mark-- a dark mark. A sign. A sign that your boyfriend-- has become a death eater. That he may have even murdered someone already.

So you slowly walked up to him, and you surprised him when he spotted you.

"Draco--" You started, reaching for his forearm. He shoved you off of his arm, causing you to stumble back.

"Don't touch me, you filthy mudblood." He said coldly and cruelly, as if you were someone he loathed. But you could see in his eyes, he was scared. You didn't do anything wrong. So why was he acting like this?