Because, of course, it's nothing whatever to do with you, and then you're a very important person, and of course Tommy and I are very unimportant." She paused for breath.
You didn't used to be important. 
mnli hypothesis: You didn't used to be important.  premise: Because, of course, it's nothing whatever to do with you, and then you're a very important person, and of course Tommy and I are very unimportant." She paused for breath.