Pal: Vienna Girardi in 'Shock' over Breakup with Jake Pavelka

Pal: Vienna Girardi in 'Shock' over Breakup with Jake Pavelka
Vienna Girardi and Jake Pavelka
Mark Brendel/ABC

06/22/2010 AT 06:00 PM EDT

Vienna Girardi knew what she was getting herself into when she accepted an engagement ring on a reality TV show. But she had high expectations for the relationship with Bachelor Jake Pavelka.

"She's not naive," a pal close to Girardi, 24, tells PEOPLE. "But she was committed to see where this led. She really thought he was a special guy. She was ready to go as far as it could go, and it obviously ran its course."

So when the relationship folded, "it was a shock, to say the least," the source says. "She was really down about it."

And while the split with Pavelka, 32, could actually be a blessing in disguise – "She didn't expect to be married in her early 20s, so it's probably all for the best," the pal says – the breakup was definitely not amicable. "Let's just say they're not going to be hanging out together anytime soon."

Reporting by STEVE HELLING

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