You look at her solemnly, watching as she brings one of her red locks behind her ear. You can't stand the sadness on her face, but there isn't much you can do about it anymore. When your parents find out, there'll be no way around it. It's best to end it now, before they can know and make the situation worse.
You shatter the hollow silence. "Are you ever jealous of the birds, Lily?" You gesture out the window at the few birds perched on the house across the street. She doesn't know what you mean, and you elaborate. "They're free. Free to do whatever they'd like, free to love whoever they'd like. Not having to worry about what would happen if his blood-purist parents found out about his Muggleborn girlfriend." You enunciated the description, showing her just how far you've come for her, how much she's changed you for the better. She wasn't the Mudblood anymore. She was Lily.
"Look, I wish we could keep this up, but it just can't happen. You know that. You've known Sirius long enough, surely he's told you how our parents are. They won't approve of you, and frankly, I'm a bit worried to see what they'll do once they find out about us. I'm not going to risk that."
"Regulus, listen to me. I'm sorry. I knew what your parents were like, and I couldn't bring myself to care. I was stupid, I shouldn't have let this go this far. I should go. Goodbye, Reg."
She picks up her bag, turning and giving you one last, sad smile before leaving through the door.
"Goodbye," you murmur softly, after hearing the click of the door shutting behind her.
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For the Valentine Drabble Collection Competition (Pairing: RegulusLily, Prompt: Birds) and the Represent that Character Challenge.