Fix you (Niall Horan fan fiction)

I don't know how it happened. I let down my guard. I swore I'd never fall in love again, but I fell hard.

Underneath My Skin

He's the one that made my heart beat out of my chest. The one who made all my demons run and hide. The one who taught me that the past is the past. But most importantly, he's the man that dug underneath my skin and taught me what love really is.