1 - I've thought about this too and if the bar was crowded, very possible PH was talking to the two men, coworker was busy talking to other people/friends and looked up and PH was already gone. Coworker may not have known she left. I WOULD be curious to know if coworker sent a text and asked PH where she was, especially if her car was at coworkers house. I don't blame coworker for letting PH leave, many scenarios where PH could have left without coworker even knowing.
4 - I answered another post like this earlier. I can hit a bar at 9PM and easily be back home and asleep by midnight. Every person is different and the bar scene is ok with me until it gets later and people get drunk and annoying. So I can easily see them all going out, maybe the band was boring to them, maybe the disagreement and PH leaving without notice put a damper on coworkers evening. Lots of scenarios here too. I don't have my phone on during the night, someone could text me over and over and I wouldn't wake up at all. Only reason I ever leave it on is if my teenage son is out.
But...…..it does bring up the point that it really makes me wonder if coworker tried to call/text PH BEFORE the 12:14 text. I mean, a disagreement between them, PH left alone, car still at coworkers house at midnight. Was this typical behavior for PH (despite what mom may know, parents don't always know everything) and there wasn't a reason for coworker to be concerned, or maybe PH let coworker know she was leaving and knew these men and there wasn't a reason for coworker to be worried.
I have to think since it was reported as "strangers" that LE has confirmation to think that PH didn't give notice she was leaving and possibly knew these men. I still think maybe she did know them casually or that she was slipped something.
If my friend disappeared from the bar, even with us having a disagreement, I would be texting calling non-stop po'd that she would pull something like that on me and I'm not sure I would sleep until I knew she was ok. NO judgment here for coworker, just my own personal feelings/thoughts, who ever thinks your friend will just disappear never to be heard from again (except those of us who follow crime cases).
I'm so curious to know what the disagreement was over (was it PH wanting to leave with the men and coworker advising her NOT to, was it PH wanted to drink and coworker knowing past history was telling her no or PH wanting to find drugs). It could just as easily be a fight over a guy. But I think this would be telling as to where PH's mindset was and possibly why she was leaving.