Lisa, a picture of your plant would help us to help you. Clivias do seem to like to be fairly crowded in their pot to bloom well. Several crowns or fans of leaves in one pot is good. Like daylilies, agapanthus and other clump-forming plants, they seem to want to form a clump before they will bloom dependably.
I was given a single-fan plant by my kids as a gift some years ago, and it bloomed the year I got it, but has not ever bloomed again. I think it had been divided from a larger clump and had already made it's growth to bloom that year, but maybe it will bloom again now that it has several fans in the pot again.
If the leaves don't look healthy, it's possible that just adding some fresh potting soil and a dose of timed-release pelleted fertilizer in the spring would bring them back to their normal selves. I add a small handful of alfalfa pellets to mine each spring, as well. It's very healthy looking.
Like tarev, I am giving mine a cool, dry dormant period right now. Once our weather warms up in a couple of weeks I'll give it a little fertilizer and start watering it sparingly again.
