Hmmm.. May be time to cut the bloom stem back/off so that the plant doesn't waste anymore energy into trying to flower. Looks like that maybe a secondary bloom? Meaning it already bloomed prior to that off of the same stem a while ago?

Because the leaves are wilted, looks like the plant is experiencing water issues. You may want to dump out the bark and take a look at the roots. They should be smooth and greenish.. not grey and wilted. If they are, then it may not be getting enough humidity and air mixture near the roots. Also if the bark is too dense it can have the opposite problem.. too much water. Make sure there is no standing water around the roots.

If you dump out the bark, take more pictures.. I would be interested in seeing the roots.