Answer:
Misinterpretation of verbal communication, body language or behaviours
The answer you might be looking for is that, for one, she will feel guilt over not riding with her sister anymore, and that she might experience some health issues because she doesn't ride anymore with her sister. In order to avoid these consequences, Janna should look into other sports or activities that she can balance out with her job and her sister.
Answer: Hey! You might think bipolar people are like that, but she's totally normal. Their moods change instantly. You're not the only one with a mother like that. Many people have them, for instance two friends of mine. Think about her good things. It'll be okay. Hope this helps!
you can report it, not encourage the bully and always support the victim