@jacarandaaaas yes and no. she excluded herself but for reasons of her own family already making her feel that. you're seemingly shifting the "blame" towards her when her family is the one feeding the insecurity of not feeling wanted.
@jacarandaaaas while your original statement is technically true, it misses the mark because it forgets context and belittles mirabel's feeling that made her FEEL excluded already. yes she could've gone up to be included but she didnt do so BECAUSE the way her family treated her