Kim Kardashian PISSED Over 'Sham Marriage' Stories

Kim Kardashian is telling her friends ... her marriage to Kris Humphries was true love, and she's extremely angry at reports that the wedding was one big sham.

Kim is telling people very close to her ... the marriage was "100% real," adding they loved each other very much.

Kim is saying they cultivated their relationship for a year -- it wasn't an overnight thing. She says when they got engaged ... she truly believed the marriage was "forever."

As for the 72 days ... Kim is explaining it this way: "Sometimes marriages end ... rapidly. Just because it's short doesn't mean it's fake."