My sister and mom have never got along well. Since we were in middle school they have butt heads almost constantly.

In November my sister had to move in with my mother because she couldn't financially support herself and her daughter.

Ever since she moved back in with mom they have been arguing with each other about stupid stuff. They seem to be unable to sit down like adults and talk through things and come to a compromise or understanding.

Whenever I am with one of them without the other they complain to me about the other. They have been doing this for years and every now and then I have to tell them to keep me out of it. No matter how many times I tell them they always go back to complaining to me.

Today I was at their house and they started getting into a yelling match over things. I got mad so I left without saying goodbye because I knew I would start yelling too. When I got home I called and had them put the phone on speaker so I could tell them what I had to say at the same time. I told them that I left because I was mad and didn't want to start yelling or possibly punch a wall. I told them that I was sick of being out in the middle and I won't tolerate them getting in the middle anymore.

I also told them to not call me the rest of the weekend because I'm mad and don't want to talk to anyone for a couple of days. I just need to calm down before I talk to them otherwise I might get mad while I'm on the phone with them. I also wanted to make a point that I didn't want to hear the complaining anymore by not talking to them for a couple days so they might take me seriously this time.

My sister tried to put me on a guilt trip when I told them not to call me. I told her there was no reason to make me feel bad for something that wasn't my fault. She said she wasn't trying to make me feel bad so I told her that it seemed like she was and to stop.

I told them I loved them and ended the call.

Is this a decent way to handle this situation? What should I do if they start getting me in the middle again? I have to tell them over and over again not to get me in the middle but it never sticks.