I just rewatched Gravity Falls and Mable is funny but sooo annoying and self centered. It always seems like Dipper is the one who sacrifices everything so she can be happy. His "chance" with Wendy at the Fair, his apprenticeship with Ford and she literally said that Dippers Dream job would be a terrible "Opportunity for her". Like WTF. Can't you just be happy for him, Girl? Stop acking so cray cray.
Here's the video