Lorna quickly learned to keep out of the way of her older siblings. While her brother was prone to being more outright angry, Lorna disliked the stiff way that Liliana would act around her. This and the lack of support from her mother led to her feeling of disconnection from her family.
After Lorna killed Edwin she became terrified of being found by Liliana, knowing that she would stop at nothing for retribution
Liliana harboured a strong grudge for Lorna after the separation of her parents. She loved her mother and both her and her brother felt as though there needed to be someone to blame for what had happened and with nothing else to turn to that blame feel upon Lorna. As time went on that blame settled and became a constant dislike for her sibling and she grew to see her as an outsider to the family. While she mostly just ignored Lorna any conversation the two did have was keep formal and cold. Subconsciously, she would look for Lorna's mistakes and faults and use them as an excuse to herself as to why she disliked her.
However, after the death of Edwin, her calm disinterest in Lorna turned to absolute hatred, knowing that she was the one that killed him.