NC as outing. FIL is immunocompromised. He has developed a high temperature, NHS Direct said to self isolate. MIL is still going to work. Gently reminded him this means separate rooms, bathrooms, etc. Tonight DH called and he said they were eating dinner together and have been together all day, his argument is that MIL will have it by now anyway.
I am really pissed off, DH thinks I'm being irrational. AIBU here? I'm really worried about FIL, he's vulnerable.