The Arsenio Hall Show/CBS Television Distribution

Shannen Doherty, 43, not only watches former co-star Tori Spelling's reality show, but thinks it's "amazing."

Wait, what?

The former "Beverly Hills, 90210? actress shared that she's a fan of Spelling's Lifetime show and also gave some advice for the "True Tori" star when she stopped by " The Arsenio Hall Show" on May 15.

The two actresses haven't always gotten along, as Doherty was known on the set of "Beverly Hills, 90210? for often feuding with the other stars. Jennie Garth, another star of the show, said in her new memoir "Deep Thoughts From a Hollywood Blonde," that Doherty would often complain about the show, from its wardrobe to its writing and that Spelling would often get in the middle of it. From then, the two of them always seemed to be at odds with each other.

Spelling has been dealing with her husband's infidelity and drug use, which has all been documented in her reality show. Doherty says that her "heart does break" for Spelling and anyone in that scenario.

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The "Charmed" star hopes that everything turns out okay for her past co-star, but "in the meantime, it's making for some amazing TV."

The actress also shared a bit of advice and well-wishes: "I just hope that Tori loves herself. She's a beautiful girl and she needs to ignore the haters."