Kris Humphries's filing for an annulment has shaken up Kim Kardashian, even though she had considered doing the same thing, a source tells PEOPLE.
"The filing is, of course, upsetting," says the source, who is close to the reality starlet. "She respects Kris and just wants them both to find peace and move on. ... Kim doesn't want a battle."
The NBA player went to court Wednesday with a request to annul their 72-day marriage on the grounds of fraud. If granted, it would be legally tantamount to the elaborate, filmed-for-TV wedding having never taken place.
Kardashian originally had looked into filing an annulment, says the source, but opted instead for a divorce petition because she was told it would be too difficult to prove the grounds for an annulment in court.
"Kim is sad how things ended up," says the source. "The split was a devastating decision from the beginning."