My BF is upset he has to take care of the baby?

So I am a stay at home mom. I am basically a full time mom and was taking part time classes but the semester just ended. My bf also took two weeks off to spend time with the baby and me. However, I just tested positive for Covid and now my bf is upset that he’s gunna have to be doing “ daddy duties”. He says that he was expecting to relax, get his work done around the house etc. And now he’s upset since I will be basically not around them( helping him) until I test negative. It’s so frustrating! I see him catching attitude every-time the baby fusses and he says “ it’s just that out life with the baby is so boring now!” So I just walked outside. It’s frustrating seeing him handle our baby upset and I can’t do anything about it. However, I think he should enjoy and spend as much time with our baby as possible.