I'm so bummed...

I've been waiting and WAITING for my "P. mollissima" seeds that I purchased on Amazon to finally flower and I get this small, pasty, pale flower.

So, any thoughts on what it is? The leaves are about 3 - 3 1/2" across (quite delicate really compared to my other vines). The flower was already starting to give up after getting beaten by heavy rain, but the colour is pretty accurate in this picture.