Monday gossip roundup: Chris Brown wants Karrueche Tran back, not Rihanna

Chris Brown is reportedly having second thoughts about splitting up with Karrueche Tran and professing his love for Rihanna — and now he apparently wants Tran to take him back. “Chris has been in constant communication with Karrueche ever since she dumped him,” a source tells Radar Online. “She ended it with Chris because he was just blatantly flaunting his dalliances with Rihanna, but now he’s telling how sorry he is, and how much he loves her.”

This is getting tough to keep up with. Katy Perry has reportedly called it quits with John Mayer once again after getting fed up with his inattentive ways and wandering eye, according to Radar Online. “John just can’t commit, and he kept luring Katy back with promises that he was going to change, but then he didn’t,” a source says. “Katy was pretty crazy about him, so she kept giving him another chance. John liked Katy, so he wanted to keep her in his life, but it just wasn’t up to Katy’s standards.” The pair gave romance a go in August, only to break up after two weeks and then get back together again in September. “She needs the guy to be on board 100 percent, and she was sick of John disappearing for five days at a time then booty calling her then straightening up and treating her well, only to go back to his old behavior a few days later,” the source says.

Things are reportedly getting pretty serious for Olivia Wilde and “Saturday Night Live” star Jason Sudeikis, her boyfriend of nine months. “They are living together now,” a source tells Us Weekly. “Totally inseparable!” Sudeikis has even been ducking out of work to spend time with Wilde, as he did one night last month. “Everyone on the show staff was writing late,” a source says. “But Jason managed to sneak over to Radio City Music Hall to see Bon Iver with Olivia.” As for the next big step, marriage is apparently not in the immediate future for either Wilde or Sudeikis, who both ended marriages within the last two years. “They’ve both been married, so they’ve already experienced that and know what it entails,” the source says. “It’s something for down the road.”

“Arrested Development” star David Cross married actress Amber Tamblyn over the weekend, his rep confirms to Us Weekly. The news was broken by director Lance Bangs, who posted a photo to Instagram of the couple dancing at their reception, with the caption reading, “Yo La Tengo playing Superchunk, Mission of Burma and Pixies covers at David and Amber’s wedding.” The pair became engaged in August 2011.

Reese Witherspoon is “back at home” a week after giving birth to baby boy Tennessee James. “They are both doing well,” a source tells People magazine. “Everyone is bonding with the baby. And [husband] Jim [Toth] has had a lighter workload and has been spending a lot of time at home with the baby as well.” Witherspoon was also spotted out and about late last week, grabbing lunch with baby Tennessee in tow in Santa Monica, Calif.