1. Khione has no clue that the world knows about what happened with her son. She’s never gone looking to see what information is out there about her or her family, and it never occurred to her that anyone would know about it, and that she’s anywhere near interesting enough to have anything at all said about her.
2. She’s always been happy with what she had. She loves her family, all of them, and if she never did anything more than bounce between her uncles and aunts and grandparents and siblings and everyone else, she’d be fine. She loves Poseidon, but she was always perfectly satisfied by whatever time he had to give her and it would never occur to her to want more. She’s friendly and open to a fault, and if she wasn’t almost a literal prisoner of her father, she might have found more trouble than she cared to by now.
3. Khione’s brothers were the reason she was able to get away with hiding her pregnancy and the baby. Even when she wasn’t actively looking for her family, she couldn’t stop wishing for her brothers. There are plenty of different reasons she missed any one individual, but the absence of those two she felt more than anything.
Aaaaaand I didn't think John and Oliver would be missed here?