It's all tragic!
Most of it, if not all, is a misunderstanding.
People tend to think other people drive people to suicide. They don't understand how many people suffer within, without external cause.
Since they don't understand her illness, they blame him. It's not about "blame."
I hope, someday soon, I'll have the courage to share openly and will help to educate those around me. (Interestingly, my pdoc thinks it's best I do not openly share. The stigma is real.) It's a tough call.
It's a sad story you're sharing.

WC