I am introverted too and a homebody. Sometimes when I socialize a lot, it takes a toll and I need alone time. But Gabbie here hardly interacts with the outside world not because of introversion, she tends to overshare until recently when she has been called out one too many times for her problematic behavior. She flakes out of socializing because of anxiety over fear of being scrutinized for her size and appearance.
She's so quick to get procedures done because she thinks that if she's thinner, she'll have this magical life when she fails to realize that most of her conditions would improve if she goes to therapy. You know, fix her relationship with food, not base her value with regards to her weight, learn to cope with the common stresses of life, how not to be a twit, etc.