[A knock sounds on his door, a warning before Saber opens it and steps inside. It wouldn't be the first time she came to bid him goodnight before heading to her room-- except those times she only ever hovered in the doorway and was still fully clothed, not in her white ankle length underdress with hair loose down her back, like she's about to crawl into bed right now.
She casts a wary eye over the room quickly but finding nothing suspicious doesn't ease her troubled expression, not even looking the tiniest bit satisfied or relaxed. Once the initial anger passed, the fact of an intruder getting so far had set her in a low and self-depreciating mood all day]