Back at it. Justin Bieber was a man on a mission. Driving through LA in his white Mercedes SUV on Oct. 22, the “Sorry” singer “moved quickly,” says an eyewitness, “like he was eager to get to his destination.” That would be the house of his ex-girlfriend Selena Gomez.

Justin arrived around 6 p.m., and Selena pulled up 10 minutes later. The pair slipped inside, and Justin stayed for at least six hours. One week later, they were spied together again. This time they grabbed breakfast at JOi Café before attending church together. After the service, they headed back to Justin’s house where they spent the day relaxing.

They’re back on. Selena has dumped her boyfriend of 10 months, The Weeknd (real name: Abel Tesfaye), and gotten back together with Justin, 23. The exes, who had a famously tempestuous on-of relationship from 2009 through 2014, have been quietly speaking and meeting up since the “Hands to Myself” singer, 25, underwent a kidney transplant over the summer as a result of her long battle with lupus. (Selena revealed in a new interview that both of her “kidneys were just done,” adding, “I guess I got to the point where it was really kind of life or death.”)

justin bieber selena gomez - getty

(Photo Credit: Getty Images)

“When Justin heard that Selena had undergone surgery, he immediately reached out to her,” says an insider. “He always knew that Selena suffered from lupus, but the severity of it didn’t hit home until he found out about the operation.” Justin’s compassion is one of the main reasons Selena ended things with The Weeknd, 27.

But her family isn’t happy about the reunion: “They believe Justin and Selena’s relationship is toxic,” says a source. “No one in her family wants her dating Justin ever again, and they’ve told her to dump him.”

Selena dumped The Weeknd via text. “She didn’t even bother to call Abel,” says the source. “She wrote him a long message and told him she didn’t feel like it was going to work out between them anymore, but she wants to be friends.” The Weekend “did not take it well,” adds the source. “Selena has been telling friends that Abel is mad at Justin and feels like he stole his girl.”

selena gomez the weeknd - getty

(Photo Credit: Getty Images)

The Weeknd even tracked down Justin’s number “and texted him some nasty messages,” says the source. The Weeknd reportedly unfollowed Selena’s kidney donor, Francia Raisa, on Instagram, as well as Selena’s assistant, Theresa Mingus, and mom, Mandy Teefey. The “I Feel It Coming” singer, who is currently on his Starboy: Legend of the Fall Tour, “has told Selena that when he gets back he wants to have a face-to-face conversation,” says the insider.

But nothing is going to change Selena’s mind. “Things are moving fast between her and Justin,” says the source, adding that Selena has never stopped loving the Grammy winner. “She’s told friends how they are sending poems and lyrics to songs they are both working on to each other about their relationship. They’ve even talked about dueting on a song together.”

But those close to Selena are worried. “Selena’s still very vulnerable and needs stability,” says the insider. “Justin creates havoc in her life.” Friends have been begging her to slow things down with Justin, but she’s not listening. “She knows that he can be bad for her,” adds the
source, “but Selena’s telling everyone that he is on a spiritual journey and has changed. She keeps saying that their story isn’t over yet.”

For more exclusive celebrity news, pick up the latest issue of In Touch, on newsstands now!

Have a tip? Send it to us! Email In Touch at contact@intouchweekly.com.