There are very good reasons Sakura usually tries to watch what she says, and avoiding situations like this is one of the main ones. OneShot Crackfic some NaruSaku towards the end

"Come on Ero-Sennin, how can you not know what the date is dattebayo? I thought you were supposed to be the responsible one here, though I suppose I should have known better." As an important day approaches, will Jiraiya remember its significance?

"Fine, if you insist I will tell them, but when they reject me and I lose my friends you all know whose fault it was." Naruto must divulge his biggest secret, but how will his friends take this knowledge and will things ever be the same.