I was out with family and family friends yesterday for the football and a big event in my home town. Id only had about 5 drinks throughout the whole day so not drunk and same with my sister. It got to the evening and my sister said she was going to walk home alone. My DM said she would get a taxi with her and drop her off. But my sister was being awkward and was in a bad mood so kept replying no I'm walking home.
Obviously we don't want her walking home in the dark alone so I stepped in and said don't be silly. Why are you being awkward. We then started arguing with her telling me to shut up and saying I've been on my phone alot. Which I had as my ExP was texting my about our DS as he was really poorly. He had rung 111 and was keeping me updated. I was then going to the out of hours to meet then when this argument erupted. So I replied to sister yes I have been on my phone because DS is really ill. Her reply was oh woopydoo. So I lost it and stood up and told her how dare she say that about my ill DS. She the told me to f**k off. I had to leave as I was shaking with anger.
My DM is now blaming me and saying I should apologise. I said she should for saying what she did about my DS. AIBU to be angry and wanting an apology.