Yes!

Yep, most passie blooms stay open for only one day.
I know it stinks, but I guess it makes the day they open even more special:)

In cool weather at the end of the growing season (October or thereabouts) I've had Incense and Lady Margaret blooms that stayed open for two days. But this is the exception rather than the norm--passiflora are notorious for single-day blooms. This also makes them unsuitable for florist trade.

well, that REALLY STINKS. I wish I had known that prior to growing them....but alas, it's still a beautiful plant.
So does anyone know WHY this happens? For such an intricately beautiful flower, that takes soooooooo long to come to bloom, it just seems odd to me that they only open once.
And what happens to the bloom after they close? and what about the fruit? When do they come? and how edible are they?

Well, a mature passion vine can cover an area of 20'-30' and will have many buds reaching maturity in continuous fashion. I suppose they don't need to stay open more than one day, because there are more ready to open the following day.

After the flowers close, assuming they've been fertilized by a suitable pollen donor, the ovary will begin to swell. After several days it will grow large enough to push the wilted petals back open, which eventually dry and fall away. The fruit will grow until it reaches full size, then remain green until it matures, ripens and drops off the vine. This can vary among species, but two months from pollenation to ripe fruit is a common time frame.