Ah man.. cried a little reading this chapter. I think the fear of not being 'normal' hurts a person a lot but it's also undeniable that there's truth in the fear. People who don't understand circumstances (or realise other people have different experiences) easily say bad things that really hurt someone who already has to endure a lot.
Tsubasa's friend who is speaking badly about Kaede really setting in his fears of not being able to be understood, never been able to have basic relationships triggering a regression that feels really common with healing and it just hurts a lot to see. I'm a little bit nervous about manager like many, but the way she handles the situation is also really really good without judgement and with plenty of space and tact (like a lot of other characters, the doctor, kaede's friends...) I think her line about the 'adults and children' really rings true... Adults being responsible from their knowledge and being able to help those who are experiencing terrifying and difficult things for the first time, it's always appreciated.
I think even though this manga is not afraid to show realistic depictions of trauma and PTSD and the micro-aggressions that really hurt people, it shows how people can be kind and be understanding, that you don't have to feel alone. I hope Kaede can keep meeting these kinds of good people in his life and learn to be stronger step by step.