Jenny McCarthy has figured out the key to a happy relationship with new boyfriend Jason Toohey: honesty – and lots of it. "I have been so open and truthful in this relationship – it is amazing," she tells PEOPLE at a signing of her new book, Love, Lust & Faking It: The Naked Truth About Sex, Lies and True Romance, Friday at Miami's Epic Hotel. "If he wants Chinese [food] and I don't, I say it," she says. "If he wants to go out and I want to stay in and watch Dancing with the Stars, I tell him so … Sometimes we both want to play poker and we have a blast at home." Adds McCarthy, 37, "Our relationship is stronger because of the honesty."