“813” – It’s a somber day in Paradise with everyone reeling from Rodney and Eliza’s emotional departures, but three new beachgoers arrive hoping to turn things around. First up, Mara heads out on a saucy date with one of the twins; then, Ency and Lindsey select two lucky guys for a double date, which doesn’t go to plan. Later, the couples get some much-needed one-on-one time to discuss their futures as the end of Paradise and the possibility of engagement draw near on “Bachelor in Paradise,” MONDAY, NOV. 14 (8:00-10:00 p.m. EST), on ABC. (TV-14, DL) Watch episodes on demand and on Hulu the day following their premieres.