Please help me appraise the change in risk to me

[FromTheAshes]

My live-out DP has a lodger due to move in in a couple of months. DP has been rather flexible with the rules throughout. Not hard drinking, partying type rule breaking, just meeting his various family members indoors in their houses whenever he's felt like it. He doesn't understand why I have followed the rules so strictly.

He and I are in a support bubble. We are in tier 2, bordering on a tier 3 area. When the lodger moves in, I know he will not advise her that she is then a member of our support bubble and cannot have one of her own. He will show no interest in who she meets or the risks she takes. They will share living room, kitchen, bathroom etc.

I have a vulnerable XH and a childminder who has already said she'd not be able to take the financial hit if covid made her close the business for isolation. I had two very elderly neighbours, but both recently died of covid.

What is the genuine increased risk to me and mine of covid entering our house once the lodger has moved in?

Impossible to say without knowing anything about her - the risk would be much much higher if she's a nurse or teacher than if she works from home, for example.

I'd have more of a problem with your DP not sticking to the rules. I think you have make your own assessment of the risks.

No more than it is now, you may as well be with your DP while he's fannying about here and there meeting who he likes.

He is the biggest risk you have to deal with as presumably you don't socially distance when you meet with him so if he gets it you probably will too, and you will pass it to any people you make contact with.