Covid

i live with a few people in my family , including my brother in law. we have never seen eye to eye because hes very very childish. sadly my sister doesnt see it but thats her life , we talk only because we live together and i chose to not create drama for everyone. well anyways today he and i tested for covid because we both had symptoms and he had been exposed . he came back positive , TWICE. he laughed and said he is not wearing a mask to protect everyone else here , he is not doing a pcr test and he says its all fake and that we all will get it here. okay i understand no matter how careful we are , we can still get it. BUT for him to not care about anyone here and laugh about it and make fun of it and not try to even prevent us from getting it a little bit is not right, so i went off called him childish told him he always thinks stuff is a joke and so on. my birthday it tomorrow , ik him having covid isnt anything we can prevent so im not blaming that, but the way he acted ruined it all. im beyond upset and i know i have every right to be. just needed to express myself and thought of this app immediately .