Dianna Agron Is Terrified Of ‘I Am Number Four’ Ex Alex Pettyfer

Glee star Dianna Agron is reportedly terrified of her ex and I Am Number Four co-star Alex Pettyfer. News surfaced a couple days ago that Agron and Pettyfer had split despite rumors a couple weeks ago that the couple was on the verge of engagement.

Since moving out of the L.A. home she and Pettyfer shared about two weeks ago, Agron, 24, “is staying at a hotel under an alias” a source reveals in the new Us Weekly, out today.

So what’s the reason the couple kept the news of the split hush-hush? Apparently Pettyfer, 20, has been “a psycho loose cannon” in the aftermath of the split, according to an insider that spoke with Us Weekly.

On Feb. 18, according to an eyewitness, Pettyfer got into a heated confrontation at a West Hollywood club with actor Sebastian Stan — furiously accusing the Black Swan star of hooking up with Agron.

“Dianna is terrified of [Alex],” a pal explains, adding that he “absolutely lost it” and threatened Agron during a vicious phone chat.

Want more details? Check out Us Weekly’s latest issue out today!