by "wired different" I assume you mean neurodivergent, not sure what that has to do with what I said. I speak from experience when I tell you, you're not gonna be the nicest person in the world to a random child you have never met before right after an attempt on your own life. suicide is the most rock bottom you can get, and its not just that moment its multiple years of your life being terrible to lead up to you wanting to do that. yeah Lera freaked out a bit and yelled at her but she has been having a shit life up to that point and then went thru a confusing scary ass experience that she thought Nika was responsible for.
I'm also kinda projecting onto Lera a bit but she feels very trans woman coded and this story takes place in post communist Russia... when I tell you she had a shit life I mean she had a terrible life filled with bullying, hate crimes, and transphobia.