Nick & Jessica's Troubled Year

See the highs and lows of PEOPLE.com's Most Fascinating Couple of 2005. By Emily Fromm

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DEC. 3/NOV. 30

Since their pre-Thanksgiving split, Jessica Simpson, 25, and Nick Lachey, 32, have gone on with their lives: Simpson appeared at VH1's Big in '05 Awards; Lachey headed to a business meeting in L.A. "She's doing okay," says a source close to Simpson, who filed for divorce on Dec. 16. "She is emotional, and as upsetting as this is, she knows she made the right decision."