Today has been an awful day from the start. I didn't sleep last night at all, But that's besides the point. First of all my SO and I live with my family, My mom, My niece, My younger brother and his GF. It's rough at times. We also share a phone (my SO and I not my whole family) But she pays the bill and bought the phone.
We work for my family as well. My sister bought my brother a weed eater because he needed one for work. That was a year ago she needed to use it so she asked me to grab it on the way out the door. I thought that she had talked to my brother. Well he calls the phone shortly after we left, and starts freaking out on my SO. She told him she couldn't talk right now and then he just flipped and hung up (this is what she is telling me I wasn't there to hear the convo so I don't know) Then he sends a text which I saw that reads "Next time I ask you somthing don"t be no smart ass I'm tired of biting my tongue with you. Some body needs to let you know you aint in monroe." So she came and got me. I didn't really do anything about it. I just told my sister cause really all of this could have been avoided if she didn't ask for the weed eater. She talked to him and he said that this wasn't between them it was between my SO, myself, and him. and now my SO is upset with me cause I didn't stand up for her. but it's just not right that I am stuck in the middle. I don't know was I wrong. what should I do? What would you do?