A/N: For Jilytober Fest 2022, week 4 microfic prompt: leave. Title and description taken from Taylor Swift's 'Mine'.
Lily threw her arms in the air, eyes prickling furiously.
"Fine, then! I'll let you be! I'll leave!" She clenched her jaw, desperately trying not to cry. Her blood burned hot. If that was how he wanted it – if they couldn't agree – well, it was his house, really, not hers. She wrenched her wand from her pocket and spun sharply, bursting through the doorway and into the front garden. The world was as dark as her racing thoughts. Now she broke, tears wet on her cheeks. She'd fucked it up.
"Lily!"
James ran down from the house.
"Don't go. Please."