Do you know this fic?

There is only one scene I remember. I think Draco was asking Smith for something but he didn't want to follow Draco's request or something because he was an ex-death eater? then Draco said something about being together or married with Harry?? but Smith didn't believe him until Harry himself appeared and helped Draco with the request. I am sorry it seems vague or I wasn't able to explain it well.