User blog comment:EpsilonMk46/Season 3 New Episode Impressions 2/@comment-30498740-20180111002546/@comment-32173189-20180111053537

@ Gumball2

Hopefully that is the reason, it could also that her homeschooling is only temporary until she can catch up to the other students at the elementary school. There could also be some character development for her, in that she wants to return to school and feels a bit embarrassed that she's behind the others, and gets upset that her siblings are probably using her situation to get out of school, and she finds herself falling further behind due to their antics.