What do you make of PM in her hotel room? Can you explain that too?

No, I can’t. I mean, I can give you a thousand theories about why he was there, but most of all, I don’t believe it’s her hotel room. 

This is what Gillian’s hotel room looks like when she’s in LA for the Globes : 

It’s tiny, there’s only a bed and her suitcases are everywhere. There’s also a relaxed guy laying on her bed. 

This, this is something else:

So it could be everywhere. It could be The Crown’s team dressing room, it could be were these hairdresser and makeup artists worked for the day, it could be PM and GA’s hotel room, if that’s what you want to believe, but it doesn’t really prove anything. He was there, indeed. He was her date that night. I think we all agree with that. Does it mean this is where they spent the night together after the ceremony? I don’t think so.