My bet is that, as with the pie, she said she had it in the past but couldnt remember, so that means she has been to kumine some long time ago, so i guess she met the person she loves back then and it will be ending up being harumi.The irrationally emotional part wants her to somehow have already fallen in love with Harumi but that would make zero sense at this juncture unless she's into dudes who piss her off (entirely possible).
Man, what if she's a slipper?