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Elisabetta Canalis isn't ready to talk about her breakup with George Clooney -- but her close friend Alfonso Signorini is.

The Chi magazine editor -- to whom Canalis opened up in a revealing interview about her marriage plans -- spilled new details about the former couple's intense romance on Italian TV show Rai Uno Thursday.

"It's all over," Signorini said. "It has come as a real surprise to me. They were getting on really well."

Signorini spent a day with Canalis, 32, just last week, and it seemed things were going just fine with Clooney, 50. "She must have had about 60 text messages from George! She was so excited about meeting him as he had a few days off from shooting his film [Gravity, with Sandra Bullock] in London."

Shedding intriguing light on the sudden split, he added, "From what I know it was him who dumped her and she stormed out of the villa." (Clooney famously keeps an incredible estate on Lake Como in Italy.) "I've tried to get her on the telephone but it's switched off."

He shot down talk that their two-year relationship was an elaborate publicity stunt. "I can tell you it was all for real," Signorini insisted. "They were deeply affectionate towards each other."

Not that the relationship was easy, he stressed. "[Clooney] is actually very fatherly but at the same time they did have a very complicated relationship...It's not easy to be with a star of that caliber."

Canalis even thought twice about discussing their relationship in her on-the-record chat with Signorini, he added. "She was terrified about speaking of their private life because of him and of his lawyers and advisers."