Honestly, I wouldn't be surprised if it went either way, but from what I gathered she went back to the hotel with him willingly. Generally you don't go to a hotel room with someone of the opposite sex after a night at the bar just to hang out. She had to be cognizant of the fact that he was looking for some action. Now there were many times I woke up after a bender and had trouble remembering portions of the previous night, but I've always attributed it to the booze, not necessarily being drugged.