“There’s no huge reason except their distance apart,” Kim a source close to the couple tells PEOPLE. “With his season and Kim’s filming [Keeping Up with the Kardashians] it just slowly split them apart.”
Another source tells Radar “they broke up about a week ago.” The breakup comes as Kim is in Europe promoting Keeping Up With the Kardashians, while Miles is focusing on his new football season with the Dallas Cowboys.
“They tried to keep it as low profile as possible when they were together. They were acting as if they were single or just having fun, but they never were – it was the real deal. They were always strong, but before Kim left for Europe they decided it’s not fair that they don’t get to spend more time together and ended it,” says a source to PEOPLE, adding that the breakup was mutual.