 Leslie ( Amy Poehler ) throws her annual " Galentine 's Day " party for her female friends , celebrated the day before Valentine 's Day . She asks her mother , Marlene ( Pamela Reed ) , to tell the story about how she fell in love with a lifeguard that saved her from drowning in 1968 , but the two had to break it off over objections from Marlene 's parents . Leslie later tells the story to Justin ( Justin Theroux ) , who is amazed by the tale and wants to unite the two . He successfully tracks down Marlene 's old flame , Frank Beckerson ( John Larroquette ) , and convinces Leslie to go with him to Illinois and reunite the two on Valentine 's Day at the Senior Center Valentine 's Dance , which the parks department oversees . 
 Leslie ( Amy Poehler ) <a href='uninflect' title='1'><mark>throws</mark></a> her annual " Galentine <a href='null_genetive' title='2'><mark>'s</mark></a>Day " party for her female friends , celebrated the day before Valentine <a href='null_genetive' title='3'><mark>'s</mark></a>Day . She <a href='uninflect' title='4'><mark>asks</mark></a> her mother , Marlene ( Pamela Reed ) , to tell the story about how she fell in love with a lifeguard <a href='null_relcl' title='5'><mark>that</mark></a>saved her from drowning in 1968 , but the two had to break it off over objections from Marlene <a href='null_genetive' title='6'><mark>'s</mark></a>parents . Leslie later <a href='uninflect' title='7'><mark>tells</mark></a> the story to Justin ( Justin Theroux ) , <a href='null_relcl' title='8'><mark>who</mark></a><a href='drop_aux' title='9'><mark>is</mark></a>amazed by the tale and <a href='uninflect' title='10'><mark>wants</mark></a> to unite the two . He successfully <a href='uninflect' title='11'><mark>tracks</mark></a> down Marlene <a href='null_genetive' title='12'><mark>'s</mark></a>old flame , Frank Beckerson ( John Larroquette ) , and <a href='uninflect' title='13'><mark>convinces</mark></a> Leslie to go with him to Illinois and reunite the two on Valentine <a href='null_genetive' title='14'><mark>'s</mark></a>Day at the Senior Center Valentine <a href='null_genetive' title='15'><mark>'s</mark></a>Dance , which the parks department <a href='uninflect' title='16'><mark>oversees</mark></a> . 
Leslie ( Amy Poehler ) throw her annual " Galentine  Day " party fir her female frens , celebrated the day b4 Valentine  Day . She ask her mother , Marlene ( Pamela Reed ) , to tell the story bout how she fell in love w a lifeguard saved her from drowning in 1968 , but the two had to break it offf over objections from Marlene  parents . Leslie later tell the story to Justin ( Justin Theroux ) , amazed by the tale and want to unite the two . He successfully track dwn Marlene  old flame , Frank Beckerson ( John Larroquette ) , and convince Leslie to go with him to Illinois and reunite the 2 on Valentine  Day at da Senior Center Valentine  Dance , which the parks department oversee .