Lillian wanted to stay with Damian, but her curiosity got the better of her. she did follow, and says back
"really now? i find that highly unconvincing, Julian has been left around my children many times, with hidden surveillance, and he hardly ever raised his voice... so he's dead then, knowing the rumors to be true he would be... oh, I should probably introduce myself, how rude. Lillian Tomas, Julian's older sister"
her name should have sounded familiar to Adrian, since it was common knowledge that Gavin Tomas and her would have been married. Gavin would have been a leader of another mafia that Adrian's father would have been having serious issues with, their family was just as, if not, stronger than Adrian's
she continues
"I assume you have heard of Gavin so let me make things clear. if either Danny or Damian are hurt, especially Dannyelle, you will have a war on your hands... of course, there was talk of her being removed from her home in a haste. I suspect you were behind it, Damian working for you and all"
her threat seemed real and honest, and she could back it up easily
( @Bunni