Jenny McCarthy says her 10-year-old autistic son Evan misses her ex Jim Carrey ... and asks about him "almost weekly."

During a recent interview with Howard Stern, the Love in the Wild host told the shock jock:

    "I've tried to ask [Jim] numerous times [to see Evan], because my son still asks. I haven't [reached out directly] . . . I think that sometimes people need to take a real break from each other. But I still love him. I think you can love people from a distance and respect him. But as a mother, you just hope when you have a relationship with someone, it has nothing to do with the child when you break up."

The former Singled Out host adds: "I tell [Evan] that someday you'll cross paths, meet again. . . [but] it's hard. He's been in therapy. It's a process, he's working on it."

Carey and McCarthy dated for five years before calling it quits in 2010.