"Jules is like a surrogate mother to Robert in Los Angeles and she reached out to him and invited him over to see her with Kristen. They were both very worried about him," a source told Grazia magazine.
"He's at a low ebb right now and enjoyed seeing Kristen. One thing led to another and they've hooked up quite a few times since in secret. She has been trying to help Robert get his life back on track. She's still madly in love with him," the source added.