Thalia hated her mother. She was selfish and greedy, very very much. She wanted Zeus/Jupiter for herself and didn't bother about what the heck would happen to her children. Never.

Sometimes Thalia wondered if her mother even knew that she had two children.

She remembered all those screaming and arguments she had with her mother. The accusations she put on her mother. The words she used to describe her mother. The pure hatred that burned in her heart at the mention of her mother's name. That's why she would zap anyone who dared to call her Thalia Grace, her filthy mother's surname.

Thalia hated being reffered in any way that could relate that she had a mother. Her anger level would reach maximum and then it would blast.

But it wasn't always anger, it was just 99.9% of the time. There was still 0.1% time when they would have icecream in a park or when she would tell her a happy bedtime story or they would make cake together and Thalia would get covered in flour. And maybe, maybe, for once they would actually be like a mother-daughter duo.

Those memories were the ones that caused Thalia to to shed some tears at her death, and say this in the empty Hunters tent.

'Happy Mother's day, mom.'