[X] Lean on your latent abilities, sure you might be able to instinctively only tell what would hurt him most but you could...read him and do the opposite of that?
[X] Take a shower or something and then go find someone to top your Glamour stores off. It's easily harvested, you have permission, and it should help with the exhaustion.
[X] Apologize again, say it's been a stressful day, make up a story about where you've been. Lie ridiculously. You have no idea what he already knows about you.
[X] Write in: If asked, get really blatantly wierdly sexual about what we were 'doing' so as to make people uncomfortable talking to us and distract them from asking us where we were and what we were doing. They can draw their own conclusions.
[X] Change your clothes and meet up with Gallow and Glass, mix and mingle into whatever they're doing. Maybe chat up some of the other recent arrivals, whoever's not at the movie.
[X] Clean up and go meekly report your tardiness to the nearest Winter Courtier, apologize for not noticing the time. Make up a decent sounding excuse, you can be plenty convincing.