I'll post a link to Google search for Hibiscus Schizopetalus care and you can do some research. It's a little mind boggling at best. Google Results.

One source, My Jungle Garden, gave this advice:

(Quote)
Feed:
Fertilize twice a month with a universal liquid fertilizer, from April to September. Fertilizing does not stimulate flowering like with Hibiscus rosa-sinensis.

Pruning:
Unlike Hibiscus rosa-sinensis, pruning does not promote flowering, on the contrary: pruning limits or completely eliminates flowering. This poses a problem to keep the plant indoors because the growth is very strong and the shrub produces very long stems. It is recommended to prune every 3-4 years. (Quote)

You may be loving your tree too much? :-)

Maybe too much nitrogen in the fertilizer which promotes leafy growth instead of flowering? If you keep it as a houseplant, maybe the temperature or light that it gets is not as intense as it would in its natural tropical climate? If it's indoors does it ever get an outdoor summer vacation?

Thank you both so much. It does grow crazy long growth and I do prune it yearly to maintain a more tidy plant. I'm going to let it go... let it grow... and we'll see what comes of it I guess!

I think it's the annual cutting back.