She's not really hiding her grief as much as she really is losing her grip on reality. And considering how every mental illness back then was categorized under the unhelpful label of "insanity" and people deemed such were thrown away into institutions to become subject to inhumane "treatments", I can understand why. Doesn't excuse the pretentious aspect of it. Apparently McGee didn't even want the original game to cross the "dark and edgy" line, but executive meddling pushed the developers into making it so.
It's not even a problem I have with the games themselves as much as I have with the bafflingly stupid fanbase. "Random" and "unique" teenagers who think they're "InSaNe lol!" for playing a fucked up version of a fairy tale. Because they think that the original story of Alice's Adventures in Wonderland wasn't fucked up in itself...?