[ Too bad his logic's still off and his touching brotherly speech has to be pushed aside in favor of a fact check, much easier for Lukius to point out than, say, his issues with all the big brother talk. (It's still so strange, and ...) ]

Her homeworld was too close. She would have destroyed you for sure if you tried. [ A pause, shaking his head. ] You and your companions did fend her off ... but so close to home, she regained her strength too fast.

[ The stop there is the slightest bit abrupt, because he's still going on in his head but ... he's not sure how well it would go over bringing it up anyway. ]