Your mistake is assuming I spent any time in the evening outside of my room. I prefer to remain as alone as possible, and being anywhere else runs the risk of encountering someone.

[So, basically, the answer to the first question is "nothing", because she's a pathetic shut-in who was there the whole time.]

I don't really pay attention to the time, but it was before the sun had finished setting that I retired for the night. I brought my food with me to eat in my room, as I usually do, and didn't leave my room until the next day.