I know she was never on BB. From what I have been able to determine about timelines, BCS covers the years 2002-2004 so far, BB 2008-2010 , El Camino 2010, and Saul as Gene , manager of the Cinnabon store, 2015. That means Kim goes out of Saul's life in whatever way between 2004 ( BCS currently) and 2008 (first year BB), not mentioned from 2008-2010 during BB, and Saul winds up on the run in 2015. I am not sure when Saul first appeared on BB, but I think it wasn't early. We know that Saul was still in Albuquerque in 2010, and at the Cinnabon store in Nebraska in 2015. We don't know when he left Albuquerque yet. Seems like a long time apart for those two to ever hook up again.