When she first guest-starred on the original Melrose Place, Heather Locklear saved the series from the brink of cancellation. But it doesn’t look like she’s having the same effect on the CW remake—and the show’s failure is making Heather miserable and hurting her relationship with Jack Wagner.

“Heather said from the start, ‘You can’t go back.’ But everyone was encouraging her to do the show again. They gave her the confidence to say ‘yes,’ but now she’s miserable,” a source tells BettyConfidential. “And she’s unhappy with Jack since he was one of the ones to encourage her to go back to Melrose Place.”

Read 10 Things You Never Knew About Heather Locklear

Now Jack worries that Heather, 48, might fall back into the depression she suffered from in 2008. “He’s concerned that if she has too much time on her hands, she’s going to fall into the same slump she did then,” says the insider. “It was a tough time for her. Her career wasn’t going anywhere. She had a lot of personal problems.”

Indeed, in March of that year, a 911 call was placed from her California home in which a man claimed to be worried about Heather’s safety, stating, “I have a feeling she’s suicidal.” Her rep later said she was fine and hadn’t made the call but it came shortly after the star’s ex-husband, Bon Jovi guitarist Richie Sambora, was arrested for DUI while their 10-year-old daughter, Ava, was in the car with him. Then in June, Heather checked herself into an Arizona treatment center to confront her problems with anxiety and depression. She left after four weeks but soon found herself in more trouble when she was charged with driving under the influence in September. Even though the case was dismissed, Heather admitted at the end of that year, “I’ve been better, but I’m good today. I think I am over that bump. I’ve done so much work. I learned some hard lessons.”