There’s a discomfort in talking about breakups, divorce in particular, that Kacey Musgraves refuses to shy away from. After her last record, “Golden Hour,” which detailed the singer’s beautiful, dreamy, sunshine-filled marriage, won album of the year at the Grammys in 2019, it was shocking to hear Musgraves announce her divorce from husband Ruston Kelly in 2020. The album, and thus the relationship, had such a cultural impact that it was hard to believe it could break down. At the time, Musgraves spoke very little on the subject. However, with the release of the album and film “star-crossed,” Musgraves is finally letting us in. All the way in.