In the ending, kaguya seems to to view the main character as “big brother” but also proclaims that she loves him and wants to be with him romantically and sexually
The woman having the baby is made to believe her baby is dying, dead, or a stillbirth by the midwife. The characters can build on this in the destroy option, though they actually do believe it and aren’t lying on purpose
The ending kaguya tries to manipulate the main character into sex, trying to erase his memories and control his thoughts. In one end, heavily implied to succeed