After they split there was Internet chat about her suing him, I think for a settlement and/or property. She had a blog that hinted at his mistreatment of her in Alaska.
Andy has the nurse-servant, who must be at least 50, taking on dangerous tasks despite her lack of experience. She was out running the dogs after only one previous try. And I snorted when Andy made long speeches about the dangers of piled-up ice, then hopped on his snow machine to "scout" while nurse-servant was left to chop up the ice. Granted, he did end up helping. I wield a pick axe to break up heavy clay in my garden and could never do it all day.
We saw examples of how dog racing is very hard on the animals. Jesse explained that the warm temps during Iditarod are brutal, and his dogs developed diarrhea. My Alaskan friend has told me of how dogs have suffered mightily over the years, although there are more inspections and forced rests now. There's a limit to how much "dogs love to race."
ETA: since people have asked about Glenn, I'll add that I saw a post on the Internet that said he was let go from the series and that he was very sad about it.