That was the point where Albus' sex started shifting. Unicorns were born with a random sex, but their sex could change when they picked a mate and that was exactly what was happening to Albus. His fiance had betrayed him and he was no longer Albusflores, perhaps he was fated to be reborn as Albus - the mother of Urea's future unicorns. Albus brushed the idea away as being silly, at least consciously, but his body didn't think it was silly. The change had started.
