<human>: Can you give me the gist of the text in a nutshell?

"Estranged" isn't really the right word though. We have never had a relationship of any kind. We have hated each other since the moment she was born. Not once in the past decade (despite living together and going to the same school) have we even spoken to each other without it turning violent, or at least becoming a screaming argument. 

I moved away from home to go to college in one of the most stressful engineering programs in the country--it was like entering a peaceful zen trance. I felt safe sleeping without a lock on my bedroom door, I stopped grinding my teeth, and I stopped getting stress headaches.

However, my mom is very close to both of her siblings and considers it *very* important to have those relationships. She is completely convinced that now that my sister and I are "adults" we will suddenly get along. Now, at least half of the visits I make to see my mom, my sister will "accidentally" be coming to visit at the same time. It's gotten to the point that I dread going to visit my mom (and often just skip it completely), because my sister might be there. Seeing my sister makes me so angry and unhappy that I feel sick to my stomach, and it ruins the little time I have with my mom (I live in another city and have a very time-intensive job).

What can I do to convince my mom that tricking us into a room together is just making things worse? Has anyone ever heard of someone else going through this? Everyone who I have ever talked to about it (parents, friends, etc.) dismisses it--"it's a phase" or "everyone fights with their siblings" and no one seems to believe me when I say that something is horribly wrong.
<bot>: I want my mom to stop tricking me and my sister, who hate each other, into meeting in the hope that we will suddenly get along after two decades.