From what I'm thinking, what the directions state, and from what I know of, one of the possible, most likely answers is:
I was just getting ready to ride over to a friend's house, but I had to help my sister with some chores.
For “Day of the Butterfly”, you can use symbolism.
For instance, the butterfly butterfly represents Myra, who is shy, quiet, peaceful, innocent, and could never harm a soul.
The exchange of gifts between Myra and Helen represents their closeness and their friendship bond.