This isn’t a question anybody can answer. The exposition is the first part of the book before a plot starts; the description of characters. You must read the book to find out about whoever Paul is.
disadvantages is the right answer here
I would say the correct answer is - she thinks that Higgins deserved it.
Here is a quote from the text to prove it:
<em>"And then you were surprised because she threw your slippers at you! I should have thrown the fire-irons at you."
</em>You can see here that she wasn't mad or surprised she did it - it was to be expected.