Res flag one: she didn't tell you he was over. She gets out of work late. (Bartender) She might not have wanted to wake you when she got out of work. Fine. What is her excuse for not telling you in the morning?

Red flag 2: she didn't want him to sleep on the floor. She has her own place. Most women don't have unfurnished homes so she probably has a couch. That's off of the floor. Why couldn't he sleep there?

Red flag 3: they were still in a darkened bedroom after she went silent for an hour after you thought she was getting ready even though when you arrived, she was a mess. Which means she wasn't done doing whatever she was doing with him.