The bachelors are specifically recruited for the show by Dorin Ofir Casting in Hollywood. They are not real clients of Patty's real matchmaking business. In some cases, the bachelors have initiated the contact for business reasons that have nothing to do with finding love (Lonnie, a partner in the Dolce Group, a bar/restaurant chain -- noteworthy due to an ongoing rape investigation at the time).
Many of Patty's comments are scripted/suggested to her by the producers. The "blacklis" comment, specifically, is one of those. In last week's episode, Cara's "date" with the the promoter from Chicago relied on her ability as an actress. She was cast specifically to play the role of ditzy LA blonde. She is anything but that -- and has been to the Getty museum on more than one occasion. Saying that she had not been there helped define her character.
(I have a niece who works of the show)