Which is basically just that Raquel literally told her she had stayed there after showing up late to "work." (Let's not pretend any of these people, except maybe Charli and Peter, actually still work at SUR.) Raquel said she slept on the couch because it was "easier than going home." OOOOOOOOk.
BTW, why was Katie making sandwiches at Villa Rosa again? Please make this storyline at least sort of make sense.