It started to bother me a bit. The only person who seems to be affected by Innais's death ...

It started to bother me a bit. The only person who seems to be affected by Innais's death is her husband. Of course Luatisha is also curious about her mom and misses her, but the brothers say nothing about her. They weren't babies when she died, she must've formed memories with them. But Ixion said in the latest chapter that death of others never bothered him and he doesnt care if someone dies. But what about Innais? Did he really feel nothing after her death?
I get it that they're indifferent to others and only affectionate for Luatisha but wasn't Innais a similiar existence? Did they feel affection towards her since she clearly loved them just like her daugther.
They're behaving as if they treated Innais the same as other and Lulu is the only exception. Sometimes they even act as if Innais never existed which is honestly just sad. She was their mother after all. Lulu looks just like her mother, so why are they so unbothered by that.
Just had to say this because it didn't really sit well with me that only the Duke and Luatisha show any kind of emotion towards Innais. The Duke from the beginning talked dearly about her, like when he told Lulu that her mother chose her name and cared for her for months before she passed.
But the sons show nothing. None of them even mentioned a single word about her. As if they never met her which is not possible because it was shown in the flashback that she personally cared for Xeon when he was little. It wasnt that she was send far away to live after birthing them. Did they really not care for the person who also undesrtood them aside from Luatisha? It just doesnt add up