Schwartz and Sandoval use their "friendship break" as an excuse to see other people, but when construction delays the opening date of their new bar, the two throw a progress party to show off the space to their friends. Meanwhile, with Lisa's help, Ariana and Katie brainstorm ideas for their sandwich shop; Scheana embraces signing a prenup; and Brock's attempt to hold James accountable backfires and leaves everyone standing speechless.