[Margaret Pilkington]

A bubble is the people you live with....and to be considered a bubble you must live in the same house.
Currently you would not be allowed to visit your girlfriend because she lives in another household.
A suppot bubble is someone that you may not live with but needs help with activities of living..they need support.
Ideally and to reduce the risk it should be someone who can live in the same house...especially if they come into the vulnerable category(elderly, diabetic, heart disease, asthma, or other lung problems, immune suppressed etc)...that is what I understand the 'bubble' concept to be...it is a very limited mixing of (usually) family members.
I am sure Rob, if anyone knows any different they will put me right. and let you know.