The speeches are unrelated to the event in the signal. You need to make sure you have ALL 7 girls, not all of them had a portal. You probably forgot Sheila. After that go to the meeting room
so i loaded up a previous save again, i talked to all of them, including Sheila, she ran away. I gave the 5 others their room. I fought the nightmare with Estia and then gave her a room and talked to her again. Now i’m about to start the meeting, where Sheila comes back.