Fortunately, Aeleus is saved the 'I'm pretty sure you do care' explanation by Even's own realization that neither of them are Nobodies, and are as such, no longer incapable of such things. Still, he's willing to jump topics if Even is so very afraid that the other will grow sharp claws and pull the new (and perhaps unwanted) emotion. They'll need to come back to it sooner or later, but for Even's sake, Aeleus is willing to put it off for the time being.

"Have you tried asking her what she knows about her creation? You may not have the original notes, but you have her, and you theoretically still have anything that may have come from the creation of the more successful Replica. Working backwards may not be the easiest, but I'm certain it wouldn't post too many problems to a man of your brilliance."