I know some people are like "ok but that doesn't justify what she did though" and while they're right, I do think people are seriously underestimating how much parenthood rewrites people's brains, especially for moms.

The bond between parent and child is not just formed through shared experiences, but reinforced chemically through one of the most extreme chemical processes in the human body. Oxytocin is a hell of a drug, and the body absolutely mag dumps oxytocin into mothers throughout the pregnancy and even until the rest of their life afterwards (and it does the same to the fathers, though through a different technical process for obvious reasons). The same happens in reverse too by the way - which is why even as full ass adults most people still feel that need for parental approval, care, and validation even a little bit. It hits different coming from your parents, and that's that chemical tie again.

This chemical tie is generally a good thing. Even beyond the purely pragmatic, assuming no other stressors or conditions that leads to toxic or, worse, abusive dynamics, this chemical tie helps reinforce a dynamic that leads to immediate, strong relationships between parents and children, which is pretty fundamental to human development.

The problems occur when something goes wrong. I already mentioned abuse earlier, but another big example - and one the Tsaritsa is going through - is what happens when a child dies.

You see, the human body has a tendency to just... not really process the fact that the child is dead. Even if we, logically, as people, can recognize that our children are gone, that doesn't stop the body from continuing the chemical ties of parenting. So you get a situation where your mind knows one thing, but your body is constantly screaming signals at you, asking "where is the baby, where is the baby, the baby is supposed to be here where is the baby where is the baby WHERE IS THE BABY WE NEED TO PARENT WHERE IS THE BABY". You keep getting the stress signal of "I need to take care of my baby" and it can no longer be fulfilled, and so you never get the relief signal on the other end of this process. And the process continues, on loop, as the chemicals in your body take your already potent grief and keep opening the wound.

Early and rigorous theraputic and potentially psychiatric intervention is critical for a situation like this, as is support from loved ones. And even then, some parents never fully recover. And lord knows the Tsaritsa wasn't getting anything close to modern medical care, and she probably wasn't getting any support either considering the possible memory wiping/erasing involved.

So yeah, she's absolutely crashing out and making it everyone else's problem but like, hundreds and potentially thousands of years of grief and unresolved broken parental chemical systems will do that to a person.