Life & Style Weekly is reporting that Adler recently kicked Barton to the curb in her time of need. Her character Marissa having just been axed from “The OC,�? Mischa “thought…she needed something positive, and an engagement would be the solution," an insider for L&S said. "But Cisco doesn't agree.�? The Whitestarr frontman decided it was time to cut his losses and broke up with Mischa.

The source says, “[Cisco]'s upset, but he's sticking to his decision." Upset though he may be, Adler isn’t letting his sadness keep him from enjoying his new single life. A witness claimed to have seen him hooking up with a new gal late last month outside LA’s W hotel. Meanwhile, Mischa’s main companion as she films a movie in Toronto has been her injured puppy, Ziggy.