@MajorLang and sleuths, a few things are bothering me in relation to this and I wonder what you think:
1) assuming that the last text to JK was genuine, we don’t know what other texts the two had exchanged earlier that evening or the context of CL’s last text to JK. Had JK asked CL if she fancied a pint at the NH that evening and CL’s reply was a way of declining politely? It doesn’t sound like a one off text that one would send in isolation.
2) As I was working at York Uni at the time, I remember them being particular about working hours and they certainly wouldn’t have put someone down to work 12 days on the trot without a day off. Do we know if Claudia regularly worked Mon-Fri or Mon-Sat? Because maybe she meant 12 early starts on the trot, excluding Sunday when she never worked, for example.
3) Was CL’s text edited even slightly or did it read exactly as it appeared in the press? For example, if JK related it in an interview, the press would not have known how exactly it had been written, which would explain the missing ‘x’ at the end. But if that was exactly how the text read on JK’s phone, then it’s very unusual that, as well as the missing ‘x’, she wrote it in correct, standard English, rather than text language, which we know she used when texting friends. I’m no forensic linguist but that’s the kind of thing that experts flag up.