From the rumors I've heard, I think your leaving quite a bit out Wally. It seems to me that both Jessica/Bryce had issues seperating personal/professional.
If I recall correctly (this was published in an article, but I lost it long ago), the main issue was that Bryce and Scott were good (perhaps even best?) friends before the romantic split, so it was difficult for him to see his ex date his best friend, to the point where he and Scott drifted away from each other, and were no longer as close. I guess it's not unreasonable to see that that kind of situation would cause a problem, but they seemed to have worked past it -- their World bronze medal did come more than a year later.
As for the split... I'm sad to see yet another top Canadian pair split, but it did appear as though they had stalled, and it was wonderful to see Jessica smile in her short program this year. That beautiful smile right before the step sequence? I think that was part of her rediscovering her love of skating.