"... Oh. Ok." -Bianca wasn't expecting Olen to say that. She thought that her little boy had become a womanizer and found another one to keep hanging around.
Well, in Bianca's mind that's probably not a bad thing but it isn't good either.
First, other than Jon, Olen practically didn't have any male friends. That's not good for a young man's growth.
Also, having more ladies around would cut into the little time she had with her son. That is totally unacceptable for her.
That's why she couldn't help but grumble because of the way Olen had answered her. Shouldn't he give that answer first to her?
"Oh, Big brother... You're here?" -Olen was shocked after finally noticing Nicolus. It's been very long since he saw his eldest sibling too.
Olen immediately went to hug him.