I know the story is that TD got so mad after the uber he stormed off and friend went after him but since we don't actually know if that's true, I had a thought: It would make sense to me that the friend would sleep over at the hotel that night so as not to drink and drive, but he didn't. It would also seem logical that upon arriving at the hilton after the Dollhouse, the friend would call it a night and go home letting the married couple go up to bed since he seemingly wasn't caring about the risk of drunk driving. If the couple weren't going right to bed, it still seemed like the perfect time to give them privacy on this romantic weekend and leave. Sticking around for an hour or so back at the hotel after the Dollhouse and THEN leaving just seems like awkward timing. I don't know just a weird thought I had, I have no idea what it means, my opinion only of course.