[ Hei takes a long moment, watching her ] Because if he's gone, and he does not return, you'll be by yourself.
[ another pause before adding in an off-handed comment ] Acumen, of course, is the one who screwed up everything, isn't he? [ Channel that anger elsewhere and slowly, slowly, maybe it will ebb and if it does not, perhaps Nena will just find a way for them all to get home. ]