I assumed that there was no more Jimmy and Kim because he is in the waiting tank for the Vacuum/Life Fixer guy by himself, no Kim present. We don't see much about Saul's home life, you're correct - but (at the very least) she doesn't appear to relocate w/him to Omaha.
To further muddy it up, in S3 Ep4 of Breaking Bad, Saul tells Walter, "I caught his second wife cheating on me with my stepdad." That could very easily just be Saul talking out of his ass, or it could mean that there are two ex-wives. He has the one ex-wife back from prior to BCS (the "Chicago Sunroof" story about the guy she cheated with is what caused Chuck to have to save him from jail) - so either he does get married again before S3 of BB, or it was embellishment. Regardless, it makes it sound as if he's not currently married in that episode of BB.
It was noteworthy how much stronger of a reaction Jimmy had to watching the commercial than he did to Chuck's funeral.