She’s jealous that Peter confides in me and not in her, offended that Dussel doesn’t respond sufficiently to her flirtations and afraid her husband’s going to squander all the fur-coat money on to— bacco.
There are no more uses of "squander" in the book.
Show samples from other sources
She squandered the money she inherited from her grandmother.
She squandered the opportunity to get a good education.