When my Hoya vine blooms with clusters of pink waxy flowers it is truly exciting! Truthfully, for the first few years after purchasing this plant, it didn't bloom at all, and I didin't even know that it had the capacity to bloom, funny enough. But after producing a bloom or two, the plant has become an even more proliferous bloomer with each succesive year, and it is such a joy to watch the tiny buds develop into these stunning flowers, especially on a plant that doesn't even seem to be known for its flowers!
It is true, my hoya lives outside in a sheltered and shady spot most of the year (except for near freezing temps when it is brought indoors) so it may be happier than many of the Hoya houseplants one sees in interior photos now that plants are all the rage. But I'm sure if given a bright spot, and well cared for, you can get your Hoya to bloom too!