Headscratchers / Yami to Boushi to Hon no Tabibito

• Why doesn't Eve, since she loves Hazuki so much, simply decide to grow old with her in the book world - preferably picking things up from the moment she became 16? Eve is supposed to be pretty much all-powerful, so she could have arranged something like that easily, especially since age doesn't count for immortal beings.
• Related to the previous point: what is the use of Eve giving Hazuki a one-night-stand with her, only to wipe her mind afterward? Quite a pointless exercise, especially with those love letters that don't belong to anyone anymore in the new world. Eve isn't evil or selfish, as she gave Gargantua what he wants, and plans to return to Hazuki as her child, so she does care to be with her... but why do it in such a redundantly roundabout fashion?
  • Japanese society is fine with girls having lesbian crushes, but expects that as adults they will a) grow out of lesbianism, b) marry a man, and c) bear children. All three are met with this "I can't be your lesbian lover but I will return as your child born out of a perfectly happy heterosexual relationship to you" ending. This is a mentality that was very strong in the yuri genre until some years after this aired.
  • The visual novel has several different endings, all incompatible. One of them is an open-ended but happy (and legitimately lesbian) ending; one is completely miserable; one is...this one.