I've sorta had the same problem. Got a pair of Zebras a female with white wings and an average male. They were happy and making eggs but they were young and accidentally broke them. In about a month or so of being very happy together Lucy killed Ricky. At first I figured Ricky had become sickly and died off because birds are whimps when it comes to disease. So Lucy stayed a single lady for several months and she just looked sad and lonely so I went and got another female, the more cream colored brown Zebras. I've never seen a bird so happy before in my life, they did everything together, cuddled, pruned, ate, bathed, and slept. I have an insanely large cage for finches with 2 nest boxes. After the whole summer of loving each other, Ethel was perched alone one night, they usually sleep in the nest together. Next day Ethel was dead.
