Kanye West has skipped town to fly to Switzerland for an international arts show on Tuesday, after making headlines for allegedly cheating on pregnant girlfriend Kim Kardashian with Canadian model Leyla Ghobadi. The flight also comes days after celebrating his 36th birthday and hosting an impromptu listening party for his upcoming album, “Yeezus” in New York.

Life & Style reported in April that up to that point, West and Kardashian had spent only 18 days together out of the 108 days since he announced in January that she was pregnant with their first child.  He has mainly been in Paris working on new music. Since April, they have been spotted out together, mainly in New York, and he was last seen with the reality star at her baby shower last week in Beverly Hills.

Now, Kardashian is grounded in Los Angeles, as she is expected to give birth next month, but West is continuing to travel and spend time away from his baby mother. West left for Switzerland for a surprise performance during Art Basel and to promote his album.

Meanwhile, Kardashian has had to deal with reports that model Ghobadi, 24, had an affair with West during their relationship. The young brunette told Star magazine that they had a couple of sexual trysts beginning last July and that West contacted her as recently as last week.

Why is she bringing this dirt up a month before Kardashian is expected to give birth to West’s child? “This is going to destroy the Kardashian family," Ghobadi says. "It’s bad. It’s really bad. It’s just embarrassing. But if I were Kim and about to have a baby, I would want to know.”

West has since denied the claims through a rep.