[@ImportantNobody] 
No, it says:
[quote=@LeeRoy]
As she began to form those spikes of diamond he raised an eyebrow in confusion, maybe he had strangled too much oxygen out of her already. 
[/quote]
Because she's forming it directly in his line of sight and hoping that he won't notice. 

Also, by twisting I mean he's twisting the chain around itself. If you have a piece of string, take it and wrap it around your finger. Then once you've wrapped it, twist the string above your finger. That's what he's doing.