Guts can you not be a mindless monster FOR ONE TRAGIC MOMENT OF SENTIMENTALITY?!
That was so sad hearing Rosine owning up to not seeing the elves in the first place, but I mean, when you have an abusive step father like hers (which I'm sure isn't the only abusive male around given the history of this manga) then I wouldn't blame her for trying to escape that painful reality into blissful fantasy. Truly, a tragic moment.