Not to be too petty, but this is a sociological question. Sometimes they do, sometimes they don't. I think they just expect you to get over it, and will just be all nice and sweet, as if that were enough. Is that enough? Does it matter?
Edit--if you withdraw attention, you get nice and sweet behavior. At what point do you give attention back?
Edit--if you withdraw attention, you get nice and sweet behavior. At what point do you give attention back?