I'm thinking the same. Maybe Shiv had been respectfully disinvited from the Portugal retreat due to her attitude towards Sinead and this was her way of revenge. As someone else alluded to, perhaps she did it not knowing Sinead has a passport card.The way Sinéad looks over at Kyle just after this and he looks away is VERY telling!! Id say after Tomorrowland Kyle, Gemma etc are warning Sinéad about this cuntasaurus rex! Jack has probably been warning her for ages but surely Sinéad has to listen to them after this!
She basically tried to torpedo the whole event. There will be no going back after this.