Other than me, who else thinks these two would be a much better couple than her and Blu? I mean, if I were Jewel and I had to hear that weird voice every day, I'd want to be with someone else too. As for Raf, Eva's voice sounds like gravel and nails scratching on a blackboard. I don't know how he puts up with her. Jewel's voice is much easier on the ears than Eva. Plus you can tell those kids're driving him to the point of insanity.
Think about it. The Blue macaw species in the movie is doomed anyway. Though Blu and Jewel had kids, the only way for there to be more macaws would be lots of incest, and that isn't very kid-friendly to imply.