I'll be honest and say that the whole "you have to come back because you killed my source" guilt thing was pretty much what I wanted to avoid from the start, and the reason I developed the scenario of the murdered and kidnapped children. It had to be a seriously desperate reason for her to even [i]try[/i] to find Ethan again - or rather, that the universe would "allow" her to find him again. Laying down guilt trips about the past just isn't a Bree thing to do, but she'd be desperate enough to try damn near anything in the present. 

I do, however, have something else in mind, another tact that, I hope, would be just as powerful. I'll try to get it written tonight, but I have some other writing to get done, [i]after[/i] I finish my homework and reading, and I just don't know I'll have the time until, likely, tomorrow - just to let you know *grins*