Anna Faris 'Can't Stand' Ex Chris Pratt’s New Girlfriend Katherine Schwarzenegger

Anna Faris and Chris Pratt’s relationship has become decidedly chilly – and sources tell RadarOnline.com exclusively they’re barely communicating due to her intense dislike of the actor’s new girlfriend Katherine Schwarzenegger.

“Anna is really downcast over how quickly things are moving between Chris and Katherine,” an insider said. “She can’t stand Katherine and the way they’ve been so public about their romance without even trying to spare her feelings.”

As RadarOnline.com has reported, Pratt, 39, and Schwarzenegger, 28, have been a couple since July, and have been spotted together attending church services and spending time with each other’s families.

The new couple were even spotted laughing and enjoying a play date with Pratt and Faris’ 6-year-old son, Jack. Much to the chagrin of the boy’s cast-aside mother.

“It’s made her lose a lot of respect for Chris,” the insider added. “She’s telling pals that he needs to start acting his age.”

Pratt and Faris, 41, have reportedly struggled to treat each other with respect during the separation process, even as the Mom star has moved on herself, with 48-year-old beau Michael Barrett.

As she tries to put her past behind her, Faris has been busy purging herself of anything that reminds her of their failed marriage. That includes putting up for sale their $2.5 million former home.

“You’ve got to feel for their son Jack seeing his parents acting this way,” the informant told RadarOnline.com exclusively. “In the beginning, this split was cordial, but now it’s getting pretty bitter, pretty quickly!”