Bitter, yes...But my own looking at Alice is a bit less cheerful...
Really, a young girl who talks to the dolls she made when dead sober, with no one else. Dedicated completely to them, even. Who raised her? Where did she learn to speak? Why is she alone, no, why she stays alone, obsessed with those dolls she manipulates?
What does she feel when someone(Marisa? Reimu? Who would work best?) barges through her house, destroying them? What does she feel to bring them to battle after that carnage? (friends of self, her masterpieces?)
There is so few of those dolls Alice used previously in the extra. She summons none in her battle.
In the end, the most precious thing Marisa steals isn't the grimoire, really.