Is AUTHOR wrong in the post ? POST : My wife's mother recently went into hospice due to end stage dementia. Yesterday my wife, who's been trading shifts watching her mother with her sister, decided that she wanted to go out to lunch with her friend and told me to watch her mother and keep her comfortable. I'm the worst at taking care of people but I said yes.

About an hour in I thought I was doing a good job but then I smelled something foul. It was obvious that she had soiled herself. I didn't want to change her because I promise you I would've thrown up and I know I couldn't handle it. I told her I'd call a nurse and did call a nurse three times. I came in and out of the room to check on her and tried to keep her calm while we were waiting for help.

Long story short my wife beat the nurse home, and after changing her mother lit into me. She expected me to tend to her mom's every need including changing her messed diapers, wiping her down, and powdering her because "that's what taking care of someone means". I said that she's known since we were dating that I don't do smells and can't clean up messes like vomit and feces. I lost my cool when she kept pushing the issue and told her that if it was so important to her then maybe she should've stayed with her mother instead of going to lunch without asking her sister to stay with her and asking me to change her mother without asking me. I would have done it, even want to, but there's just some things I can't do/feel comfortable doing.

Her and her sister are both refusing to talk to me and things are extremely uncomfortable. AITA?