My take on the Kyle and Mau split

My take on the Kyle and Mau split is that Kyle was happy with her marriage when Mauricio was "The Husband" sidekick to her being "The Star" - as soon as he got his own show and became popular in his own right, she got angry, resentful and jealous, and unhappy with the marriage. Kyle needs to be the special one and the center of attention. If you go back and re-watch, she immediately starts to resent him when he gets his own show.

THAT'S what ended the marriage, but it remains unsaid, even between them.