Hugh Hefner's ex-girlfriend had an "awkward, but good" meeting with him about his engagement.

Glamour model and reality TV star Holly Madison was shocked to find out Playboy founder Hugh is to marry Playmate Crystal Harris, because his intention not to marry caused their breakup in 2008.

Holly said of their meeting: "It was definitely awkward, but good. A lot of people congratulated him on Twitter, but for me, it was such a personal thing. I wanted to go there."

Former 'Girls Next Door' star Holly, 31, said she wanted to "confront" her 84-year-old ex on camera so "everybody will know" how she feels about Hefner's engagement, and the results will appear in her present reality show, 'Holly's World'.

She added: "I wanted to confront Hef and just get all my feelings out there rather than make a statement."

Another of Hugh's ex-girlfriends, Kendra Wilkinson - who has married NFL player Hank Baskett and had a son since splitting from the magazine tycoon - wasn't as shocked by the engagement.

She said: "I wasn't surprised by it. I knew he was really, really in love. When I heard that he officially split from his estranged wife, Kim, I knew that was a sign."

Hugh - who has previously married twice, splitting with last spouse Kimberly Conrad in 1998 - announced his engagement to 24-year-old model Crystal on Christmas Eve (24.12.10), saying she "burst into tears" upon seeing The Ring he had picked for her.

'Holly's World' is aired on January 29 in the US.