Ash was too distracted to notice that he was being tailed. His head was full of thoughts of revenge and worrying about Ruby. She said they were friends and that was why she wanted to help him.
He had been right not to expose the fact that he knew about her powers. She never would have thought that way if she was aware; she would think he was using her like her aunt and uncle wanted to.
He had been furious that idiotic bank elf reminded him of what he lost but Ruby somehow sensed he was upset and did her best to distract him. She stayed up far later than she normally did playing that silly constellation game with him…and then slunk off into the forest claiming she needed to find a bathroom.
Ash had a feeling that wasn't it at all because it took her a rather long time to come back. Was she using her powers to make more money for the next day?