I Love You But I Can't Breathe
Loving Harry was as easy as breathing.
Until Harry's lungs slowly started to fail.
-Major illnesses/disorders and other unpleasant medical things, unidentified disease, sadness, and so on.
- Unhappy ending (Please don't even start reading it if you don't like sad books or sad endings, I promise you it's not a happy story and I don't want to upset anyone).