I Was Confessed to by the Person I Was Admiring

The protagonist, a shallow person, was reincarnated as a noble lady.
While searching for a marriage partner for her future life, she spent her days admiring handsome men.
Of course, she never thought about getting involved with them, as she knew that she was just there to enjoy the view.
However, one day, one of her admired targets, the Marquis’ son, asked her to be his pretend girlfriend.