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We were pretty shocked to learn that seemingly squeaky-clean star Zac Efron went to rehab for an alleged cocaine addiction, and now TMZ is reporting that the 25-year-old actor has been in treatment twice this year!

Zac has been doing cocaine for more than 2 years, according to the site, and he was "also into Molly [the pure form of MDMA]." He initially sought treatment in March for several weeks in a private residence where he received outpatient care, but around the time he was shooting Seth Rogen's film Neighbors, he had a relapse.

"He surrounds himself with a group that enjoys partying," an insider tells People. "He got caught up in the partying lifestyle the past few years." Another source added, "Like most people at clubs, he liked to drink and have a good time. He definitely liked to party."

"He would make sure that his friends surrounded him and was clearly concerned with his privacy … almost to a paranoid level," another source told the mag.

So what caused him to spin out of control? According to TMZ, Zac has "significant issues with his parents, who are still trying to control his life," and he's also having "girl issues." The site reports that this has nothing to do with Vanessa Hudgens, so we're wondering who broke his heart!

Additionally, Zac is reportedly upset about his movie career (or lack thereof) and he has been hanging around "a bad group of friends" who "introduced him to the world of cocaine." Thankfully Zac has cut those folks out of his life, and after two stays in rehab hopefully he's back on track!