House, a former pageant winner, announced Wednesday on social media she will appear on the popular Bachelor Canada show.
Leroux, a 33-year-old Montreal native, played for the Florida Marlins, Pittsburgh Pirates and New York Yankees over six years in Major League Baseball.
He had a 1-3 career record with a 6.03 earned-run average in 71 2/3 innings pitched with 66 strikeouts.
Leroux also played in the minor league systems of the Milwaukee Brewers, Philadelphia Phillies and Toronto Blue Jays and had a stint in Japan with the Tokyo Yakult Swallows.
He also competed for Canada internationally, winning gold at the 2015 Pan American Games in Toronto.