School drama :p (Kinda vent)

So this past school year, this one girl that I've been friends with for awhile now has gotten REALLY toxic and aggressive over tiny things. For context, I know she has autism but only recently has she started acting overly aggressive and toxic towards me and my friends. Also, for privacy reasons, I'll call this girl Sophia. So, these past couple weeks, me and my friends were talking about this in our group chat, and basically we planned out that we were going to tell her we didn't wanna be friends anymore, but I said I couldn't go that day because I didn't want to witness her getting upset. My mom is also aware of the situation, and when I told her she let me stay home for the day. The next day, I went back to school (Btw I should mention shes the only "Friend" I have that I hang out with in class) and we changed seats. Cool. Bad news though, I and Sophia sit on each side of one of my long time friends (Ill also change the name for privacy reasons) James. Which, isn't the best, but at least I got him. This was yesterday, and luckily I got to stay home today for another off topic reason, but I'll see how it goes tomorrow. -_-