confusion

why does my friends girlfriend get so mad when he's sick and tries to bet mucus out of his system but she's ok with herself doing it calling him annoying but her coughs are fine

Maybe she's squeamish hearing other people do it. Kind of like how some people are annoyed by chewing noises. She shouldn't get so mad though if he's feeling under the weather.

yet she feels her condition matters more apparently she told him that complaining cause he has bronchitis expects him to get the mucus out "quietly or some other time"