I've also never been able to go upstairs in Aela's house. I didn't try every night I was there, but the guide says "go upstairs after first encounter with 2nd boss at night, to get...". But sleeping at her house never progressed the world to night anymore. Was I supposed to lose once and run back immediately? Was I supposed to try in one of the nights before meeting the boss?
I also can't enter Zoe's room at night. She tells me to meet at night at her room "knock and enter" but all I get is a prompt saying I shouldn't go in without a reason. EDIT: NVM just had to get submission to 4 by eating with her(and paying?)