AITA for calling my girlfriend “Bodily Functions”

For backstory, my (22M) girlfriend (21F) has a lot of fluids coming out of her body. She pees every hour and always tells me when she needs to poop. The worst part however, is her loogie hawking. This girl is the most congested person I have ever met and is constantly hawking loogies. She spits them in our sinks, in bushes, out of the car, etc. I love her, but it is gross. I tried to make a joke out of it earlier and I called her Bodily Functions when she said she needed to pee in the car. She got angry at me and said she can’t help it. She asked whether I would like it more if she hawked loogies/blow her nose or let the snot drip on her face. AITA?