4) Ash's mother says something along this when he empties his bag in front of her. "You must have worked really hard" when she looks at the bag and tells something about it. To that Ash says, "I worked hard but Isshu league....." I didn't exactly understand what he said after that but he uses the word "Mou chotto"which means "a little more" depending on the context. Maybe Ash said "I should have worked a litte more hard?" Or "I should have done a little better" or something. It has to be along those lines. Which means Ash shows his disappointment. And then he gets more fired up and says "I'll become stronger. I'll become stronger." I know we saw this many a times in this series already but I love when Ash shows
taking his goal seriously. Even if he doesn't win the league forever, just his determination is enough for me.
5) Ash's mother knew that he would leave again
before hand. Unlike in the AG-DP transition, she didn't let herself be taken by surprise and predicted Ash would leave again. She does get surprised when he says "I'm leaving tomorrow" but she later says "I actually expected this to happen.". Throughout the episode she was shown holding back her emotions. I am pretty sure she doesn't want Ash to go, but at the same time she can't be holding back. Classic.