Yep, they are popular house plants, but it probably won't ever bloom indoors. Maybe a big one like that would put on a flower if you wrestle it outside for the summer. They take full sun here. Yours looks like it needs more light to me. A bit leggy.
Down here they are invasives that seed themselves, grow to 20ft., have 2ft. long bright red inflorescences and can be a right nuisance.
When was the last time you did a soil change? If it has been over a year, I would do it.
Wash and rinse your leaves with warm soap and water. 3-4 drops of Dawn to a gallon would be great. The stomata of the leaves are being suffocated by the dust preventing them from proper transpiration to the plant, resulting in lackluster growth.