Why was Mr. Bacon still a sad man and what was the bigger bet he pined to win The Duchess and the Jeweller?

Mr. Bacon, the jeweler is in sorrow; he pines for a woman
to care for him. Although he is rich from the jewels he owns, there is something missing
in his life:

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So the great jeweller, the greatest jeweller in
the whole world, swung down Piccadilly, perfectly dressed, with his gloves, with his
cane; but dissatisfied still, till he reached the dark little shop, that was famous in
France, in Germany, in Austria, in Italy, and all over America—the dark little shop in
the street off Bond
Street.

At one time, he had
Mademoiselle who lived near him. She would put a red rose in his coat's buttonhole each
morning. Now, Mademoiselle is married to another and Mr. Bacon is all alone and
dissatisfied with life:

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But Mademoiselle had married Mr. Pedder of the
local brewery—no one stuck roses in his buttonhole
now.

Mr. Bacon is now in love
with the Duchess of Lambourne's daughter, Diana. He would do anything to have her love.
That is why he writes the Duchess a check for twenty thousand pounds for fake pearls.
Mr. Bacon pines away for her daughter, Diana. When the Duchess of Lambourne offers Mr.
Bacon a weekend riding trip with Diana, Mr. Bacon gladly accepts. He will pay any price
to be with Diana. He had his bet on Diana. He knew that he could win the bet to spend
the weekend with Diana because her mother, the Duchess, desperately needed money. In the
end, Mr. Bacon wins his bet, but loses his money for an exchange of fake pearls from the
Duchess. His weekend riding trip with Diana only costs him twenty thousand
pounds.