Scott Disickdoesn’t think his split fromSofia Richiewill last.Richie, 19, ended herone-year relationshipwith Disick, 35, over the weekend, but a source tells PEOPLE that the reality star is confident they will get back together.“At the moment, she seems serious about the split and is still angry,” the source says. “Scott thinks she will come back after she calms down.”PEOPLE confirmed Richie and Disick had split Saturday afterhe was spotted looking flirtywith a mystery woman atKanye West‘sYelistening partyin Jackson Hole, Wyoming, on Thursday night. Disick reportedly told guests that he and Sofia wereno longer together, according to TMZ.Want to keep up on the latest from PEOPLE?Sign up for our daily newsletterto get our best stories of the day delivered straight to your inbox.Andrew Toth/GettyAnother source close to the former couple told PEOPLE thatSofia ended the relationship after confronting Disick about cheating on her.Over the weekend, Disick attended daughter Penelope and niece North’s birthday party, where the source says he seemed “fine” and “only briefly mentioned Sofia.”But while Disick is looking at the split as temporary, he isn’t making any grand gestures to prove his loyalty.RELATED VIDEO:Kourtney Kardashian‘Trusts’ Sofia Richie with Her andScott Disick’s Kids: Source“He isn’t really doing anything to win her back right now,” the source adds. “Just giving her space and waiting for her to change her mind.”Richie hasmoved outof Disick’s home to stay with her father, music iconLionel Richie.As for how Sofia is adjusting to the breakup, “She seems to be doing okay,” an insider told PEOPLE over the weekend. “She is surrounding herself with girlfriends and keeping busy.”
Scott Disickdoesn’t think his split fromSofia Richiewill last.
Richie, 19, ended herone-year relationshipwith Disick, 35, over the weekend, but a source tells PEOPLE that the reality star is confident they will get back together.
“At the moment, she seems serious about the split and is still angry,” the source says. “Scott thinks she will come back after she calms down.”
PEOPLE confirmed Richie and Disick had split Saturday afterhe was spotted looking flirtywith a mystery woman atKanye West‘sYelistening partyin Jackson Hole, Wyoming, on Thursday night. Disick reportedly told guests that he and Sofia wereno longer together, according to TMZ.
Andrew Toth/Getty

Another source close to the former couple told PEOPLE thatSofia ended the relationship after confronting Disick about cheating on her.
Over the weekend, Disick attended daughter Penelope and niece North’s birthday party, where the source says he seemed “fine” and “only briefly mentioned Sofia.”
But while Disick is looking at the split as temporary, he isn’t making any grand gestures to prove his loyalty.
RELATED VIDEO:Kourtney Kardashian‘Trusts’ Sofia Richie with Her andScott Disick’s Kids: Source
“He isn’t really doing anything to win her back right now,” the source adds. “Just giving her space and waiting for her to change her mind.”
Richie hasmoved outof Disick’s home to stay with her father, music iconLionel Richie.
As for how Sofia is adjusting to the breakup, “She seems to be doing okay,” an insider told PEOPLE over the weekend. “She is surrounding herself with girlfriends and keeping busy.”
source: people.com