Regarding the altercation and whether the boyfriend would have been told that night or not:
I asked several male friends I was with this evening. We have been friends for about a decade and asked them if they would wait to tell their friend their gf's cheating on them. As soon as I asked the question one of my friends started laughing and reminded me of a night, about 4 years ago, when we were all out at a bar and he spotted a mutual friends girl getting cozy with someone other than her boyfriend. He reminded me that we headed closer to her, he caught her attention and waved his phone at her in a "gotcha *****" kind of way. She was off and running within moments. He did tell the friend on the spot and I believe most men would. These are all guys who value their friendship and see each other as family.
With that being said they would also inform a friend if they felt some guy was being hands-y with their gf and it was not appreciated. I don't believe guys who didn't think there was something going on would have let her walk out of smallwood after the confrontation. Someone is lying here and since the confrontation is caught on tape it can only be the reason behind the confrontation. He was being "aggressive" and "bothering" Lauren does not hold up when we realize the boys let her leave with said "aggressive" guy.
The likelihood of a stranger abduction is pretty nil. It would be one hell of a coincidence to be abducted by a stranger after such an interesting and dramatic evening. Lost items, fights, multiple locations. It is all just too much for a stranger abduction to have occurred on TOP of all that.