just wanted to be clear, not a promise of not telling anybody. I'd suggest, never make that promise though.

tell if you feel you have to, if you think it'll be any help. my longest friend (still a case, murdered or suicide) died last may, for years before that - she was doing really good with our promises I made with until I was unavailable being in hospital for so long - I regret no matter what I do. I knew things would be different if I've done something. her aunt knew though, for I know how much they are close to each other too, I've told her but again, aunt looked at the another way. no matter how much I've tried to do, it is hard for everyone.