2 ideas for u
tell her 1 day before v day, if u succeed, then first full day of
yr r/s is vday
well even if u fail, every v day u will think abt this or even
every day, so doesnt matter whether the next day is vday understand
? 
tell her anyday, because if it works, it works because she also
likes u, not because it's vday/bday
