Full meltdowns in tweens can look very different from younger kids: explosive anger, door slamming, harsh words, or complete shutdown and withdrawal. All of these are the same thing underneath: a nervous system that hit its ceiling. The intensity can feel personal. It is not. The thinking brain is offline and the emotional system is running everything. Do not engage the content of what is said in the heat of the moment.
I am not going anywhere. We do not have to talk. I am just here.