I'm not sure about the significance of the boyfriend/girlfriend driver...but I get a good feeling from it. That it wasn't you driving indicates that it is not your conscious self that is showing you this memory/dream. The fact that it was a boy/girl mix is neat because that shows a balance within yourself. yin/yang, all that.
I wonder if when you were the age of the little girl if you didn't feel abandoned in some way...or in need of nurturing? Was there an event or indicident? Some healing may have taken place (healing your inner child) during this dream since you gave her the physical security and nurturing that she needed. (food) I wonder, if it was indicating you at that age, if you simply felt physically not taken care of - you know, food, roof over your head....not the emotional love side of things, but that Taurean physical security. hmmmmmm.
'Tidying up a mess you made'...might just mean that, on some level, you're putting things right.