Yulia hasn't seen her family in ages due to strained relations between them (esp. the stepmother) over her job.
Yulia's maid job was originally meant to be a temp position; a badge of honour for an aspiring noblewoman. But Yulia wanted to become a full-time lady's maid because she liked the financial/movement freedoms it gave her, over being a cooped-up, stuffy noblewoman. (Plus caring for Primera.)
An argument broke out between Yulia and the stepmother, which resulted in Yulia leaving the family home.
It's also noted that Yulia's name has not been struck off her family registrar; the final move in cutting off/disinheriting noble children for good.