AITA for dropping my best friend of 4 years over a 3D printed spider?

Me and my now ex best friend were casually texting about usual things like the kind of clothing we want and makeup,skincare and jewelry you know the usual teenage girl things when I found these cute tiny 3D printed spiders in my room that had roses on the back of them. I casually took a photo and sent it to her and asked her if she wanted it. She replied with “no not really but I will take it because my boyfriend is scared of spiders” the next day at school (we all are in the 9th grade btw) my new best friend of one year saw it and got really excited so I gave one to her and I kept the other. My ex best friend saw that my new best friend had it in 9th period so as soon as class ended as my best friend walked down the stairs my ex best friend pulled her down and started searching through everything she had and couldn’t find it. So my ex best friend pulled on my best friends hoodie and almost choked her and when she still didn’t give it to her she kissed her on the lips and my best friend screamed and a teacher saw it happen and side eyed them and walked down the stairs. As we got outside my ex best friend was more angry and was screaming “ give me the spider it’s just a dumb toy give it” and then she proceeded to slam my best friends stuff down and stomp it slam it again and stomp it again . My best friend is practically a tooth pic to I quickly grabbed her hand and took her to my moms friends car because she was picking me up and I didn’t want my best friend to get snapped in half. So my moms friend agreed to drive her to the front of the school and she hopped in the backseat as my moms friend was driving I felt so bad about the situation I gave my best friend my spider too. As my friend got out my moms friend didn’t know she was getting her stuff and nearly ran her poor foot over. On Monday I found out my ex best friend manipulated my online friends into being on her side by telling them my best friend tried to jump her and I took her side. For context my best friend weights 96 pounds at 15 years old I don’t think she can jump anyone if the wind gets to bad she almost flys away. But now I have all my old friends that don’t know me irl blocked because they keep insulting me and my best friend all my school friends know what really happened and are on our side what do I do ( I will post updates if there are any)