They'll always have The Amazing Spider-Man. As reported earlier this month, Andrew Garfield and Emma Stone went their separate ways recently after dating for more than three years. And while sources initially told Us Weekly they were just taking a breather, an insider now says their blockbuster romance is over for good.

Stone, 26, "ended things and moved back to L.A.," the source reveals in the April 27 issue of Us. "It's finished. It's not just a break."

One factor in their apparent split was Garfield's intense commitment to his role as a 17th-century Jesuit in director Martin Scorsese's upcoming movie Silence, which costars Adam Driver and Liam Neeson.

"He'd been in a dark place for months, getting into his role," a second insider tells Us of the Never Let Me Go actor, 31, who lost nearly 40 pounds in preparation for the film and has been shooting in Taiwan since January. "He wasn't being the best partner."

For more on the couple's shocking split, watch this week's Hot Stuff video, as explained by Us Weekly entertainment director Ian Drew.

Other stories in the roundup: Justin Timberlake and Jessica Biel's baby bliss and Bruce Jenner's Kardashian drama. Plus, singer Kat Deluna drops by with a braid that rivals Rapunzel's — and news about her latest single!