"Things aren't great between Russell and Katy," a source sighs to the Mirror, "and the likelihood of them remaining friends dims by the day."
Brand, however, is hardly lonely. In between fighting a felony charge incurred after an iPhone-flinging incident, he continues to keep company with one dark-haired young woman in particular ...
On Monday, Russell was snapped (at left) house hunting in Los Angeles his latest dark-haired lady friend. Along on the outing: his mom, Barbara, who reportedly flew in to meet her son's new squeeze.
"Russell and his mum are extremely close," a source tells the London Sun. "She's always the first person he calls when something happens. Barbara is very fond of Katy Perry but was interested in meeting the woman who is helping Russell through such a difficult time."