Los Angeles Superior Court Judge David Cunningham III issued the order prohibiting any contact by Zachary Loring with Patridge, who sought protection from Loring after he showed up at her house several times.
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He was arrested on Aug. 30 after Patridge spotted him outside her home.
She testified during Wednesday's hearing, calmly recounting how Loring presented her with beer, wine, poetry and drawings.
"I was afraid," Patridge told the judge. "He had no emotion. He was monotone. He was very intense."
The actress said she accepted the items from Loring because she was afraid to provoke him, but later stayed away from her home. She read one of the poems he gave her, and showed the judge several of the pictures he drew.
"The evidence that has been presented, I find it quite disturbing," Cunningham said before issuing his order, which also covers Patridge's younger brother, Mark.
Patridge, 24, said she was afraid of Loring, who was not in court.
A Los Angeles police detective testified that the 24-year-old Northern California man was exhibiting stalking behavior. Records show he has not yet been formally charged for the Aug. 30 incident, but some of the items used in court were turned over to police after the hearing.
"This has been a difficult and scary experience," Patridge's attorney, Jeffery Rubenstein said. "She hopes Mr. Loring gets help."