DN visited DM her on Sunday, on Wednesday he tested negative on LFT, then on Thursday tested positive (or the other way round, she's not sure). His friend has Covid and he had been on holiday with him until the day he saw DM. So given that friend is definitely positive and DN has had a positive LFT, odds are that he has it I'd say. Apparently they haven't bothered with a PCR for him as 'he feels fine.
DM thinks she doesn't need to test as "he wasn't here long and one of his tests was negative anyway and I feel fine so I don't have it, and I'm double jabbed'. So she's merrily going about her business, having lunch with friends today, mixing with people much older than herself this week etc
She's normally pretty sensible and a rule follower but for some reason thinks that this is fine and won't be told otherwise. If DN had had a negative PCR I'd agree with her but she doesn't think he's even had one. Appreciate even if he was def positive she wouldn't need to isolate from Monday anyway if she tested negative (I think) but surely if you know you've been in touch with someone who's had a positive LFT you'd be cautious until you knew the outcome of a PCR, especially staying away from people in their 80s / 90s?? I'm so cross but she thinks she's done nothing wrong, happy to be told I'm overreacting but I don't think I am!