Gabby is energetic, kind, and overly affectionate. However, she can also be very unpredictable. When it comes to interacting with others, Gabby is fiercely loyal to the people who are nice to her, such as Ellie. She is also quick to take offense to others' comments and actions that she does not like, such as when Dan votes for her in "Mazed and Confused", and has been known to explode into a rage if she believes they're mistreating animals or the environment, as she's a big lover of nature. It is often mentioned that Gabby is an activist, and while on her call to home, it's revealed she owns many, many pets, including exotic animals. She is also a devout vegan, as she was even willing to starve herself during the early days of Fans vs Favorites because her team couldn't find any fruit. It is revealed in the second episode of Disventure Camp 1, "Logged & Loaded", that Gabby has recurring hallucinations, seeing a duplicate of herself, which is a representation of her intrusive thoughts. This duplicate acts more outwardly cruel, manipulative, and rude, even insulting Gabby herself. When pushed to a breaking point, Gabby adopts the personality of this other self, going as far as insulting and threatening violence on those she's been wronged by. It is possible that this side of her also plays into her joining the Villains' Alliance during All-Stars, although since her elimination in that season, she has been shown to be a much gentler individual.