It's fifth year. Draco has been scratching his left forearm a lot. Once y/n figures out what's causing it, she helps in the only way he'll let her. From a distance.
After a tragic accident, y/n stops speaking to everyone. Well, everyone except for a very cold Slytherin, who just so happens to be your enemy. Only problem is, y/n is a Gryfindoor and Harry Potter is trying really hard to make them talk to him.
Y/n goes missing her fifth year at Hogwarts. Nobody noticed she was gone. Well, except Draco Malfoy; the one who made sure that her time at Hogwarts was something she dreaded. Now, he makes sure to find her.
Draco confesses his love to y/n. She rejected him. Heartbroken, he leaves town for two years before returning. Draco always thought y/n just didn't love him. That's not the case. When it's a revealed that y/n had an incurable disease, pieces are placed together, and Draco is desperate to finish the puzzle.