Next day, Diego tried to have a reasonable discussion with Malcolm about the little argument they had with Dina. He hoped his business partner would take care of his grumpy wife and give him some advice for saving the club while they're at it. Unfortunately, Malcolm was useless with both of those things.
Since Malcolm wasn't going to cooperate out of fear for Dina's fury and Diego really wanted to have a successful business to learn the trade, he decided to take matters in his own hands and end the partnership with the Landgraabs.
He sold the Last Simoleon to the city and with the money he got from it, he paid off the condo and managed to buy a nice little community lot in Pleasantview he named "Chloe's Corner" for his new retail idea.
(Side note from me: I hate playing with entertainment/ticket based business in this game with a burning passion and while I thought owning a club for the story purposes was a good idea at first, I quickly grew to deeply hate even going to that lot. I enjoy simple retail businesses much more and so does Diego now.)