THE long-running feud between TORI SPELLING and her mom CANDY is back on, and it’s nastier than ever!

A source says Candy, 68, is show­ering attention on son Randy, 35, and his family, while shunning Tori, 40, and her clan.

“Tori is just heart­broken,” an insider revealed. “She wants her kids to enjoy their grandmother, but Candy seems more devoted to Randy and his family.”

As The ENQUIRER reported, the feud ignited after Candy blamed Tori’s behavior for the 2006 death of her father, TV mo­gul Aaron Spelling.

Adding insult to injury, Candy inherited $500 million while Tori got a mere $800,000. Both blasted each other in published memoirs, and Tori had to downsize her lifestyle.

Just last spring, the couple sold their Malibu home and began rent­ing a house in Thousand Oaks, according to an insider. Tori and Candy did make peace in 2010 and celebrated Mother’s Day together in May, but they haven’t been pho­tographed together since.

“Candy chronicles her life on her Twitter page,” said the source. “She never mentions Tori, but she gushes over Randy, his wife Leah and their two girls.”

Candy posted photos on Twitter of her August visit with Randy and his family at their home in Portland, Ore., said the source. But the insider said Candy didn’t visit Tori, her husband Dean Mc­Dermott, and their kids – Liam, 6, Stella, 5, Hattie, 2, and Finn, 13 months – during their three-month stay in Ontario while filming their upcoming HGTV series “Tori & Dean: Cabin Fever.”

“Candy is tired of Tori painting her as the villain in her life,” said the source.

 “And with Tori set to do publicity for her latest book, ‘Spelling It Like It Is,’ Candy’s preparing herself for another round of ‘Mommy Dearest’ jabs.”