The most generous way to look at that is that Mach is mistaken. He thought it was in Burleigh's book, but he actually heard it somewhere else. I really hope he figures out where, because even though it's completely irrelevant it seems to be one of the pegs upon which hangs the idea that Amanda Knox was really crazy enough to murder her friend for not liking her enough.
You know, like the testimony of the English women who didn't like Amanda. Their catty reports are also supposed to be evidence that Amanda resented Meredith (which she didn't).
Well in fact even Knox herself hints to the episode in her book, even if she paints her loneliness in soft distant colours ("social scene not for me", "nostalgy of friends") and pulls a curtain on details:
WTBH said:
(...) Patrick poured me a glass of wine, and I hung out on the edge of the crowd for a while. But, for some reason, I was feeling a bit flat. I caught Patrick's eye and mouthed, "I'm leaving", waving goodbye. He gave me a nod, and I was out the door.
Around 12:30 A.M., when I met Spyros and his friends for drinks, I couldn't get into the good time they were having. Even on a blowout party night, Perugia's social scene didn't do much for me, and the whole evening felt like a dud. It made me nostalgic for the sit-around-and-talk gatherings of friends at UW. I was glad when Raffaele came to Piazza IV Novembre to walk me home. By that time it was 1:45 A.M., and most of my eyeliner whiskers had rubbed off. Thankfully, Halloween 2007 was over.
This "thankfully" the party was over is something you can't miss.
And you can guess why she doesn't have eyeliners anymore.
She calls Raffaele at 1am and she is glad Raffaele walks her home - she has no girl friend who does - she is glad, despite they had not been eager to spend the evening together. She was not so glad to spend the evening with him and apparently he too - so he says - preferred to remain closed at home rather than go out to party with Amanda on Halloween night.
Even from their own book, you bet she wanted to spend the night with Meredith.
This is what Sollecito wrote about that night:
October 31 was the first day since our meeting that Amanda and I spent almost completely apart. In the morning I was invited to a friend’s graduation ceremony, and I went to another friend’s house for much of the afternoon. Amanda had class, then focused on her plans for Halloween, a big deal for Perugia’s foreign students, though it meant nothing to us Italians. She and I did not meet up until late afternoon, at which point she drew cat whiskers on her face in makeup and, knowing my passion for Japanese comics, scrawled an abstract design on me. I didn’t feel like going out, so I worked on my thesis while Amanda walked over to Le Chic to meet up with some of her friends there. She had hoped to spend the evening with Meredith, but Meredith’s British girlfriends didn’t like her - they found her too unrestrained in the way she acted and talked and burst into song whenever she felt like it - and Meredith never responded to her text suggesting they meet.
Even Sollecito notes that she wanted to spend the night with Meredith.
The fact that even he knows Meredith didn't respond to her sms, it suggests that this must not have been a completely unimportant detail, must have had a consequence of some kind, some emotional importance.
Sollecito even adds that it was not a chance, it was not Amanda and it was not a forgetting on the part of Meredith, it was in fact that "Meredith's friends didn't like her".
Here it says really almost everything you need to know. Obviously Sollecito pins it on "her friends", it's they who appeared to dislike her, not Meredith. Such distinction is obviously pulling a compassionate curtain. The reader can well understand his distinction between Meredith and her friends makes no sense, Sollecito didn't know any of those girls and couldn't have a clue about what they actually thought, how could guess who didn't like who? He is making up this picture because it's the only thing he can say in order to keep Meredith out. The pro-Knox crowd will maintain that "didn't like" doesn't go for Meredith, she and her friends were separete entities with different views, that they only thought Amanda was a little "unrestrained" and that Amanda was only a bit nostalgic, but the public reading is not made of Kwills, the dynamic of a rejection of Amanda's feelings are clear, even just from these rather omissive accounts.