The Clivia Chronicle. Lumix M4/3 20mm

About two years ago, our neighbors gave us a cutting from their 20-year-old Clivia plant.  We were dubious whether we would be able to make it grow in our apartment which is north-facing, and gets zero direct light.  With this in mind, I took the plant to work where there is a perfect indoor environment of direct sunlight in which plants can bask, and my colleague who knows how to take care of them.  The Clivia did so well there, that we had to split it into two separate pots.  One came home for the winter to get what little light it could at the living room slider, the smaller one stayed at work.  When the summer began about a month ago, we put the Clivia out on the balcony, thinking that it wasn't yet too hot, and there was more light than inside; it would be fine.  Not so...  Within a few days, some of the leaves were seared brown; Ms Clivia was not happy.  After consulting with my colleague, we decided that she should come back to the lab for rehab.  The scorched leaves were trimmed away, and then, surprise, surprise, she started sprouting a stem with flower buds!   Over the last week or two, I have been sending update pictures home to Editor showing developments. Today, the light was perfect to use a real camera, as the morning sunlight shone through the petals, enhancing their beautiful color.
So the mystery is this: did the shock of going out on the balcony, trigger the flowers?  Did the plant think it was Spring, and time to bloom, or was it the fact that it was stressed by the sudden heat and light?  We're now trying to decide whether to try the same treatment on the other plant, and see if we can induce her to flower also...