Why am I not expected to express my sadness?

COVID-19 Pandemic
(2020-2023)

As usual, I will start by the beginning of the story, though I will try to go straightforward to what I really want to say. This is a true conversation I had some weeks ago with a good person that I would like to share with you.

Some days ago, I was infected by the COVID-19 virus. My wife was infected, too. Therefore, both of us were infected. We suppose we were infected by this COVID-19 infection at some visit to the hospital due to some medical check some days before. We kept staying home those days, although this is not mandatory by the medical authorities anymore ... or at least from around 2023, at the end of the Pandemic, until today.