Lily's Search For The Truth About Her Mother

After reading the fifth chapter I'm starting to wonder if Lily will actually end up leaving the Calendar Sisters or not. After living with T-Ray as a father her entire life and knowing what a real family is like I'm wondering if she'll just decide to stay. She's finally being treated like family by someone who isn't even family and I'm wondering if that'll wear off on her. The only reason I feel like she would go is because the book isn't even halfway over yet, which isn't the best of reasons. So what do you all think, will she leave or stay, and when?