Sammi Giancola & Ronnie Magro, Jersey Shore
She: Bona fide Jersey girl guidette
He: Guido from the Bronx
Cupid Struck: During season one of MTV's breakout reality series
Where Are They Now? Technically together after four seasons of the show, Magro spends their offtime creepin' with other lucky ladies.
"Boston" Rob Mariano & Amber Brkich, Survivor: All-Stars
She: Survivor: The Australian Outback's likable Castaway
He: "Boston" Rob of Survivor: Marquesas
Cupid Struck: While filming Survivor: All-Stars, during which the two struck up an alliance that led to Amber's victory...and Rob's proposal during the finale
Where Are They Now? The camera-friendly couple competed twice in The Amazing Race (nearly winning in season seven) and filmed a CBS special about their wedding in May 2005. Host Jeff Probst called their eldest daughter, Lucia Rose, the first Survivor baby; she was joined by baby sister Carina Rose shortly after Rob returned from his victorious stint on Survivor: Redemption Island.
Jeff Schroeder & Jordan Lloyd,
Big Brother 11
She: Big Brother 11 champion
He: Big Brother 11's "Favorite Player"
Cupid Struck: In the B.B. house; the couple celebrated their respective wins together in late 2009
Where Are They Now? They put their relationship to the test by competing together on the 16th season of The Amazing Race. Even though they didn't make it to the finals, they proved they can work together...and used their team-building skills again in the "double trouble" 13th season of Big Brother.
Rachel Campos & Sean Duffy, The Real World and Road Rules: All Stars
She: Real World: San Francisco's fervent young Republican
He: Real World: Boston's famous logroller
Cupid Struck: While filming the series spinoff, Road Rules: All Stars, in 1998
Where Are They Now? Now married with six children, the couple Wisconsin home. Sean now represents the Badger State as a U.S. Congressman. (Republican party, natch.)
Simon Cowell & Mezhgan Hussainy, American Idol
She: Makeup artist
He: England's most famous curmudgeon starmaker
Cupid Struck: On the American Idol set in 2003
Where Are They Now? Cowell, 50, and Hussainy, 36, who have reportedly been a couple since he broke up with former girlfriend Terri Seymour in 2008, are engaged.
Karina Smirnoff & Mario Lopez, Dancing With the Stars
She: Ukrainian ballroom dance beauty
He: Erstwhile A.C. Slater with major moves
Cupid Struck: During season three of the hit show
Where Are They Now? The dance pro and her partner continued to tango after their second-place finish in season three. After they split, Karina sashayed over to costar Maksim Chmerkovskiy. In September 2010, Mario and girlfriend Courtney Mazza became parents of a baby girl.
Suzy Preston & Matt Hoover, The Biggest Loser
She: Second runner-up, The Biggest Loser season two
He: Winner, The Biggest Loser season two
Cupid Struck: While filming in 2005, but the couple kept their relationship secret
Where Are They Now? Matt kept their romance real by proposing on the Today show in March 2006. The couple, who lost a combined 252 pounds during the competition, married Sept. 19, 2006.
Jeff Probst & Julie Berry, Survivor: Vanuatu
She: Survivor: Vanuatu fifth-place finalist
He: Survivor host
Cupid Struck: In Vanuatu, of course, although they didn't start dating until he emailed her after filming was over to say hello. Probst made their relationship public when he grabbed Berry's hand as soon as the credits rolled on the live finale in 2004.
Where Are They Now? Their alliance lasted until early 2008.
Derek Hough & Shannon Elizabeth, Dancing With the Stars
She: DWTS contestant
He: DWTS pro
Cupid Struck: On the dance floor during season six
Where Are They Now? Another pair who were more than just dance partners, the sixth-season duo dated for more than a year before calling it quits via Twitter in August 2009.
Ethan Zohn & Jenna Morasca, Survivor
She: Winner, Survivor: The Amazon
He: Winner, Survivor: Africa
Cupid Struck: Reportedly in 2003, before they costarred on Survivor: All-Stars
Where Are They Now? Diagnosed with Hodgkin's lymphoma in April 2009, Ethan credits his victory over cancer to aggressive therapy and the support of his longtime girlfriend. As to whether they'll ever tie the knot, Jenna says maybe—if they get their own reality show, pitching Ethan & Jenna Getting Married: Who Would've Guessed It? "We're very willing to exploit our life and our marriage on TV," she joked. Currently the couple are dominating the airwaves again, hosting the ABC show Everyday Health and competing on this season's Amazing Race together.
Slade Smiley & Gretchen Rossi via Jo De La Rosa, Real Housewives of Orange County
She: Housewife of O.C.
He: Deadbeat dad, ex-boyfriend of O.C. Housewife Jo De La Rosa
Cupid Struck: Sometime before season five of RHOC. Gretchen could never be accused of stealing Jo's BF—before they hooked up, Jo and Slade costarred in Bravo's sloppy seconds series Date My Ex: Jo and Slade, in which Smiley roomed with a batch of potential love interests for his former live-in girlfriend.
Where Are They Now? The lawsuit magnets observed the proper mourning period (almost six months) after the death of Rossi's fiancé Jeff Beitzel to go public with their romance in March 2009.
Karina Smirnoff & Maksim Chmerkovskiy, Dancing With the Stars
She: DWTS pro
He: DWTS pro
Cupid Struck: At the office On the dance floor, six months after her breakup with season-three partner Mario Lopez
Where Are They Now? Karina seemed to have gotten over Mario faster than you can say "kick ball change," announcing her engagement to costar Maks in December 2008...but the Ukrainian pas de deux ended less than a year later.
Adrianne Curry & Christopher Knight, The Surreal Life
She: The first winner of America's Next Top Model
He: Brady Bunch star
Cupid Struck: While filming VH1's housemate series
Where Are They Now? The couple, who wed in 2006, continued to dominate the D-list reality airwaves with My Fair Brady, Celebrity Paranormal Project, Celebrity Family Feud and The Newlywed Game. Although Knight filed for divorce in August 2011, the two remain friends.
Sam Poueu & Stephanie Anderson, The Biggest Loser
She: Radio sales exec, season-nine contestant
He: Football coach/security guard, season-nine contestant
Cupid Struck: Shortly after they arrived at the Ranch; they were dating by the third episode
Where Are They Now? Though neither took home the big prize, they lost a combined 241 pounds, and got engaged in October 2010. A year later, Poueu was critically injured after falling several stories from a building in San Francisco.