DD 16 is about to start her GCSEs. Her grandad has been ill for a few months and has recently really deteriorated. She knows he's a bit poorly but not how bad. I don't know he'll be alive once her GCSEs are finished. I know she'd be devastated not to have the chance to say goodbye, though in any event he doesnt really want visitors. She is already extremely stressed about her exams and only just coping and i'm worried finding out will completely derail her. AIBU not to tell her how ill her grandad is until her exams are over?