I don't remember what a VI said, but I do think that "jumped at the chance" is a fairly subjective statement that might simply be talk. Clearly one or the other (of EA and CM) was leaving at about 3:30, and the other decided to go at the same time - but imo them leaving together wouldn't have to have had any sort of significance.
Maybe CM asked if someone could walk her to her car and EA said, "Sure, I'll do it." (And if that's the case, one person's idea that in so doing he was "jumping at the chance" is another person's "EA politely offered to be a gentleman, when asked for his help.") Maybe he was leaving and she said let me go too. Maybe they were both about to leave and said let's go together. Maybe the others that were there do recall exactly how that went down, but if it turns out that no one from that night has a very specific memory of who initiated what (if anything) so that they walked together, that wouldn't surprise me at all.
One thing I found interesting in the article is that while it says CM's family doesn't rule it out, it notes "Police have said they found no evidence of drug use that night."
