 " Galentine 's Day " is the 16th episode of the second season of the American comedy television series Parks and Recreation , and the 22nd overall episode of the series . It originally aired on NBC in the United States on February 11 , 2010 . In the episode , Leslie and her boyfriend Justin seek to reunite Leslie 's mother , Marlene , with her teenage flame . Meanwhile , April 's feelings for Andy continue to <unk> , while Ann appears to be growing apart from Mark . 
