I think there are different types of bubbles. A whole load of professional dancers and TV people living together in a hotel is one. Quite how the Strictly bubbles for the celebs and their dancers work I don’t know although they have said Janette and Alijaz cannot live together. Don’t know about the other dancers with partners. I am in a support bubble with my neighbours, primarily so we can drink of course!!!! No, they have been helping me whilst incapacitated so we count as one household and they can come in and do stuff. But we are socially distanced inside. But yes, if one of them got it I would have to self isolate I believe.