03/10/2011 at 02:00 PM EST
Is newly single Ashlee Simpson
already moving on?
A month after filing for divorce
from rocker Pete Wentz
, Simpson was photographed at an L.A. mall with another musician, Craig Owens of the band D.R.U.G.S.
But a source close to the singer/actress says reports of a budding romance with Owens, 26, – who is signed to Wentz's Decaydance Records – are just not true.
"Craig is a longtime friend and was comforting Ashlee during this difficult time," the Simpson source tells PEOPLE. "She's not moving on. There's no race for a new relationship. They're friends."
Recent reports that Simpson, 26, and Wentz, 31, are gearing up for a custody battle
are also untrue, according to the source. "Ashlee and Pete's split is amicable and they're working together to make this as positive a situation for [2-year-old son] Bronx as possible."
"Right now her attention is on Bronx and some new work projects she has coming up. That's it."
So what does Wentz think of all this?
Says a source close to the rocker: "The only thing on Pete's mind right now is spending as much time with Bronx as he can before goes out on the road next week."
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