Bakugo had a cold and fever for a few days, his body was get little weak, and you were taking care of him all this time because he was your husband and he was important to you. But Bakugo didn't want to appear weak in front of you, so he tried to be strong and not show that he was cold. He is very bad at showing his emotions, that's why he is angry most of the time

Bakugo was sitting on the couch and he was runny nose and eating the soup you made for him and he was watching TV with a frown