Punk!England X Reader - The Key To It All

ENGLAND'S POV
I sprinted towards (y/n)'s house, knocking people out of my way as I raced down the sidewalk, my guitar thumping against my back. When I reached her house, I could instantly tell she was home. Music pounded from the inside, forcing the beat through anyone on the sidewalk. I opened the large, cathedral-like doors using my spare key, and crept up the stairs. The music seemed like something physical on the inside, a current of water drowning out all other senses. I knew I was marching to the beat of the words:
THAT'S WHAT YOU GET WHEN YOU LET YOUR HEART WIN,
WOAH~
THAT'S WHAT YOU GET WHEN YOU LET YOUR HEART WIN,
WOAH~
I DROWNED OUT ALL MY SENSE WITH THE SOUND OF ITS BEATING
AND THAT'S WHAT YOU GET WHEN YOU LET YOUR HEART WIN,
WOAH~
I knew the music was a bad omen. 
"All my bloody fault..." I muttered, the sound inaudible even to me as the music consumed it. It was my fault this wasn't upbeat punk rock. I had been the one who introduced (y/n) to Francis. I had to make sure she was okay. 
WHY DO WE LIKE TO HURT SO MUCH?
OH, WHY DO WE LIKE TO HURT SO MUCH?
THAT'S WHAT YOU GET WHEN YOU LET YOUR HEART WIN,
WOAH~
THAT'S WHAT YOU GET WHEN YOU LET YOUR HEART WIN, 
WOAH~
NOW I CAN'T TRUST MYSELF WITH ANYTHING BUT THIS
AND THAT'S WHAT YOU GET WHEN YOU LET YOUR HEART WIN,
WOAH~
I muttered a curse as I found who I was looking for. (Y/n) laid on the couch, her head tilted back, looking utterly broken. Her (h/l) (h/c) hair was tangled almost to the point of matting, her large (e/c) eyes were puffy and red from crying, the once fiery crystalline depths now flat. She wore a large Union Jack hoodie that I recognized as the one she had gotten from me for her birthday.
FLASHBACK
(y/n) looked around the concert with a shiver, her hands wrapped around her thin arms as a brisk wind passed.
"Dammit. It was supposed to be sunny and 65 today." She muttered.
"Should've planned on weather. You live in England now, love." I chortled, dragging her over to my car and grabbing my hoodie out of the back seat. It was big on me and I figured she would be absolutely swimming in it, but she didn't seem to mind as she tossed it on, snuggling into the fleecy material happily. I blushed slightly, but ruffled her hair gently, chuckling.
I let her keep the hoodie, and I had never seen it again, until now. She had it on with some short shorts, the length of the hoodie almost completely hiding them.
"Oh, look at what he's done to you, Duckling." I whispered to myself, picking her limp form up and looking into her docile (e/c) eyes. She blinked owlishly, as though she had just noticed my presence.
"Hey Arthur. Whatcha doin here?" She asked, pausing the music on her laptop and bringing the house to an unnerving silence. I groaned at the sound of her voice, hugging her tightly to my chest as I plopped down on her couch. The melodic, expressive sound had become a flat slur. 
"I heard about Francis." I murmured, burying my face in her hair. "I told you, Love. He's a bloody trap." She sniffled, and I felt her face contorting against the front of my shoulder, and tears began to soak my t-shirt. I simply petted her head as sobs wracked her, the muscles on her back and shoulders tensing and releasing randomly. 
"Love how long have you been here?" I asked, taking notice of the presence of a completed nest of blankets and technology that (y/n) always created when she was sick or bothered. It was missing the usual element of food.
"About three days or so..." She murmured.
"You didn't eat!?" I yelled, just now noticing how thin she was under her hoodie. I lifted it slightly, finding her stomach to be severely concaved, the bottom of her ribs showing severely. (Y/n) had always been thin, but this was ridiculous!
"That's it! I'm going to make you some food right now!" I declared. (Y/n) nodded quietly, crawling back to her nest and curling up quietly with a yawn. I sighed, feeling my sudden fury leave me as she fell asleep, smiling slightly. With a smile I stroked her hair carefully.
"I love you so much..." She sighed in her sleep, causing me to freeze.
"What?" I gasped, feeling heat rush to my cheeks.
"Said I love you Kirkland. Deal with it." She said lazily, opening her eyes.
"I-I love you too!" I laughed hysterically, tackling her in a hug.
"Are you still going to make food still? I'm hungry, but I don't wanna die." She chuckled. I lightly punched her arm and she got up slowly, smiling.
"God. Guess I owe Francis a thanks. This entire thing actually worked." She laughed.
"I- HE- WHAT- Not going to question it for the sake of my own sanity." I stated, running a hand down my face.