Petra Nemcova and Laurent Lamothe
05/05/2014 at 01:35 PM EDT
has found love and happiness.
The model and philanthropist, 34 – who survived the 2004 Indian Ocean tsunami but tragically lost her fiancé
Simon Atlee in the disaster – tells PEOPLE she is now romancing handsome Haitian prime minister Laurent Lamothe, 41.
"Yes, we are involved, and I am very happy," Nemcova told PEOPLE on Saturday while promoting her line of internationally themed candles, Be the Light New York, at Bloomingdale's Aventura in Miami. "Even though I have to travel a great deal for all of my work, Laurent is very supportive of what I do."
The Czech-born, multilingual Nemcova lives in Port-au-Prince, Haiti, and is the founder and chairwoman of Happy Hearts Fund
, whose mission is to rebuild schools and restore hope and opportunity to the lives of children after natural disasters.
In November 2007, she visited Haiti with musician Wyclef Jean as part of a charity event and became interested in helping improve the island nation. With Jean, she co-founded a computer lab and restaurant where she lives.
Her Happy Hearts Fund has also helped rebuild Haiti after the country suffered a devastating earthquake
Since calling off her engagement
to actor Jamie Belman in 2012, Nemcova has been an ambassador at large for Haiti, bringing international awareness to its culture, development and opportunities.
Nemcova, who is also a brand ambassador for Clinique and Chopard, said, "My goal is to uplift the people of Haiti through job creation and empowerment."