And thing is with these notes - it would be clear you wrote them to try to manage your stress ffs! Even if there were notes that said for eg "I can't cope with this", it would STILL indicate you recognising stress and taking steps to get over the problem.
I wouldn't feel comfortable with things I'd written privately to myself in times of stress potentially being on show to others - buit I think it will go in your favour that he is trying to discredit you for his OWN benefit. So HA HA to him.