I think it is time to cool down the female
& warm up the male!
Temps can sometimes slow down or speed up a plants metabolism in this way,
as can longer light periods & maybe get them more in sync.
If nothing else, perhaps you could show the male some pictures
of some female Nep plants & flowers,
to get him in the mood!
I know the liklihood of the light period affecting the plant in such short a time at this point is 'zilch',
but I would try anything I could! Even praying or positive thinking wouldn't hurt!
Actually, covering the plant with a plastic bag might increase the heat & humidity enough to make a difference,
if cool temps are slowing things down.
Good luck kids!
And here I bought cigars & pink booties already! Bummer!