Contract Marriage Interrupted

“Would you like to marry me by contract, Your Highness the Princess?”
The illegitimate princess who no one wants, Odette.
The day she tried to find the right person and propose a contract marriage to avoid a terrible marriage,
The Duke of Ertmann offered her a contract marriage, whom she thought she would never have a relationship with for the rest of her life.
One of the terms of the contract he offered.
“Love me. If you can’t, try your best to make them believe it.”
That you love me terribly, so much, that I can live in vain dreams.
Reluctantly, she accepted the marriage, but her doubts did not go away.
Why the hell did he want me? And… why are you looking at me with such sad eyes?