Don’t worry about “Big Bang Theory” star Kaley Cuoco. Although the 30-year-old actress filed for divorce from husband Ryan Sweeting in September, her sister Briana says that she’s “never been better.”

Briana, an aspiring singer who has appeared on “The Voice,” sat down with Entertainment Tonight to talk about her famous older sister. And while Cuoco might be remaining quiet about her divorce, her sister revealed that she’s made sure to be a strong support system for her.

“She’s good,” Briana told the outlet. “She’s so happy.”

Fans of Kaley Cuoco will remember that she got engaged to Sweeting, a 28-year-old tennis player, in September 2013. The two had met through a mutual friend just three months prior and got married during a New Year’s Eve ceremony that December. However, their fairytale romance ended after just 21 months of marriage.

Although a statement revealed that the split was a “mutual decision,” a source told People Magazine that Cuoco and Sweeting had “seemed miserable” during one of their final outings. Others speculated that Cuoco’s “Big Bang Theory” co-star and ex-boyfriend, Johnny Galecki, played a role in the breakup. Cuoco was sure to squash those rumors on Instagram in October, sharing a photo with Galecki along with a sweet caption about them being “best of buds.”

“So sorry to disappoint, but no home wreckers or secret flings going on here,” Cuoco captioned the photo. “Me and @sanctionedjohnnygalecki are the best of buds – Leonard and Penny will just have to suffice!!!”

Since her divorce, Cuoco has covered up a tattoo on her back of her wedding date. She’s also been spending a lot of time with her horses, posting videos of riding on Instagram.