After he lost you he was distraught. It happened all over again, the grief after he lost lily to James, and he lost you because you thought he wasn’t over lily.

He had to love you from the sidelines, watching you try to move on past him. He never expected it to lead him to today.

A dementor was giving you the kiss of death, and he watched as it sucked your soul out your skin a silly white colour. Without a second thought he yelled “expecto, patronum!” A little blue transparent bunny bounded from his wand, scaring the dementor away.

It was your patronus.