Emma smiled without taking her words to heart.
She has sisters of her own and just sees the girl as an immature kid that needs time to open her eyes to life.
On the other hand, his brother does not look like he wants to force her to open her eyes.
He loved Emily so much that Emma doesn't need to be informed with mouth to realize. The way he looked at the girl was too doting, but she noticed worriedness ever since Alicia showed up.
He could just strictly order her to stay away, so why worried instead?
He loved and had spoiled her to have whatever she wanted.
It might seem the girl was not taking advantage of the doting, but that's because there wasn't any reason to do so.
Emma knew now was a reason.
Olivia was the perfect example of this situation and it was part of understanding Emma had come to realize.
