What were Molly’s feelings as they walked home?

That afternoon Molly almost danced along the street, as she walked home with her father from the station. They had seen Mrs. Gibson and Cynthia off to London. She wished her stepmother would take herself off to London much more often.
   "Well now, dad." she said, "I’m going to have you all to myself for a whole week. You must be very obedient."
   "I hope you aren’t going to boss me, Molly. You’re walking me out of breath already. We mustn’t pass Mrs. Goodmays in our hurry."
   They crossed the street to Mrs. Goodmays, one of the doctor’s patients.
   "We’ve just been seeing my wife and her daughter off to London. They’ve gone up for a week."
   "Dear me, to London, and only for a week!" said Mrs. Goodmays, with surprise. "It seems hardly worth the packing. It’ll be lonely for you, Molly, without your stepsister."
   "Yes," said Molly, suddenly feeling as if she ought to have taken this view of the ease.
   "I’ll miss Cynthia."
   "And you, Dr. Gibson. I hope you won’t feel like a widower once again. You must come and have supper with me one evening. What about Tuesday?"
   Dr. Gibson felt a sharp blow on his leg from the toe of Molly’s shoes, but even so he accepted the invitation, much to the old lady’s satisfaction.
   A moment later, Molly said to him, "How could you go and waste one of our precious evenings? We’ve got five now, I’ve been planning all sorts of things for us to do together."