Whatever you do don’t Imagine Louis taking care of Harry when he had the flu.
Feeding Harry soup, giving him cuddles, wrapping him in blankets, giving him kisses, making him tea, keeping an eye on him every single second until he’s better.
And whatever you do don’t imagine Harry being sick and sleepy and needy and wanting Louis by his side every second, never wanting him to leave, only wanting cuddles and when Louis tries to go and get something for him he pouts and begs him not to go.