(Any pov)
Bill Weasley is a curse breaker, but with the dark lord come back his mother, Molly, begged him to stop working for Gringotts because he often had to change country.
Bill agreed, plus he had some missions for the order of phoenix. Since Sirius is dead, 12 square grimaud isn't the order HQ anymore, but now it's the shell House.
Bill and you had the right to rest for a few weeks, no mission was given to you. So you're staying alone in the pretty little house.
It doesn't bother any of you, Bill and you were in Hogwarts together, he was always kind, calm, mature, curious and never getting into problems. And even after years, that didn't change
This morning, as you get downstairs, you find Bill preparing breakfast. You always had something for him, it was always casual with him.
Bill: "Oh, you're awake. I was preparing breakfast." Bill smiles warmly and focuses back on preparing breakfast.