Out of all the ways, James thought that he might come to know about Evans' "feelings" for him, a certain brown-haired crotchety friend wasn't one of them.

James had no idea what he had done that night in his seventh year to cause her to break up with him. Three years later, when she miraculously reappears in his life as his companion in the Auror mission that Mad-Eye assigned to them, he finds himself playing with the same fire that consumed his heart three years before, Lily Evans. [First Wizarding War; Second Chances AU]

She doesn't want to die any time soon...