No idea what the difference between a headcanon and an imagine is, but: Louis has a cold and is really dramatic about it, bc all he wants right now is Harry's full attention and compassion.
“H—Harry. Come here babe, I need to tell you things– Lying on my death bed, inhaling my last breath of air–”
Harry licks his lips and his hand covers the bottom half of his face soon after.
“You have a cold.” Harry says as patiently as he can manage and Louis– ignores him.
“I had a good life you know? A good run–”
“You’re twenty-five.” Harry interrupts and Louis is not listening in the slightest.
“I have lived and loved and made millions–”
“You have a cold.” Harry repeats.
“I was trully blessed. *Coughs* Babe, please don’t weep for me when I’m gone okay? Be happy, that’s all I want for you.”
“Should I give Grimmy a call right now? He could help me plan your funeral. Among other things.”
Louis sits up. “I feel much better.”