During Keith’s 2 years whale back riding with Krolia he of course tells her about his life, she wants to know all about how he’s been. 
Tells her about his friends, which of course spirals into talking about Lance, he’s surprisingly open about his thoughts because, boredom with there not being much else to do on the whale, and it’s his mom, he’s always wanted to know her and be close.

And while Krolia is happy for Keith, glad he truly has been ok all things said, she wonders how he’s like this. The pining. The shy quiet crushing on Lance. Where does this come from, she hooked up with Texas Kogane in less then a week.

So she decides to give her helpless son a hand, once they get to the castle she corners Lance for a moment,

Unmistakably, this is ‘Lance’. It’s easy to tell because of Keith’s detailed descriptions of him alone, she’d know him anywhere.

“So,” standing not a foot from him and eyeing him up and down. “You’re my sons mate?” she knows humans don’t use the term, but Lance is spluttering, eyes like saucers and she doesn’t give him time to respond.
Satisfied with the reaction she walks away. Maybe now Keith will make some progress.