I also grow mine indoor. I got two spikes with 6 flowers on each in January.
Question.
What is their normal growth cycle like?
Since the flowers are gone, the two spikes swelled up their base so it looks like there are two small sphere attached to older plants.
There has been no activity of any kind at all since, and that is a long time.
I thought the plant is supposed to grow some leaves during the summer. no idea but it is very much alive.