Hi,
Your subconscious creates the dream to respond to a problem that happens in sleep. This dream woke you up probably because you needed to use the toilet or felt like it in your sleep. Unfortunately the subconscious is not very tactful and has no moral scrooples! It uses the quickest and easiest method to wake you up. that is the reason it used the phraze:[color=blue"This is why I never want you over at my house"[/color] as the waking element. However you know you worry about your eating disorder may upset some people.
You should take it as a waking dream and dont worry about it.