Yes, JR and Lauren knew each other from several years at camp, didn't they?
Your second question is an excellent one and well put. I think MB was looking out for his bro first and foremost. Who knows, he might have even been a wee bit jealous of Lauren or blamed HER for CR's state. Because after all, the initial narrative was that Lauren was the one who escorted CR out of Smallwood. Apparently she was a liability for MB--so much so that he lied and said she wanted to party; that she left when he wasn't watching. Notice how MB makes himself scarce in the second lie? Read between the lines and what he was really saying is "There was nothing I could do because she left without my knowing it." He makes her wrong again and makes himself innocent.
Yes, my bad. You are correct. I could swear I have also read that HT was actually closer to JR/LS and JR were more acquaintances. Thank you for the correction!
I agree that the original narrative would make sense of MB blaming LS (I actually think MB might have been more likely to be jealous of CR than LS though! lol). However, with what has been put into the media now about LS, I would find it very strange that he would blame CR for LS' state.
I agree with the rest of what you say too. MB does a lot of victim blaming and paints himself as a "nice guy." Ironically, he isn't being a nice guy to either LS (by calling a taxi, the easiest thing, or just walking her home himself) or JR (dumping a drunk girl who is hosting guests).
This just seems like it should have been a roomie issue and what to do with her should have been between MB and CR. Involving JR according to their narrative, to me, is odd, especially when it was known he had a party and had guests staying with him. It makes much more sense if he was going for legitimate help. When you consider that CR himself stopped at someone else's place on his way home (ZC) and as soon as he gets home, MB also goes to a friend, well, I think it is obvious where I'm going with it lol....