 Although still suspicious of Eduardo , Gru agrees to pursue other suspects , including wig merchant Floyd Eagle @-@ san . However , after witnessing Eduardo 's two @-@ timing son , Antonio , sweep Margo off her feet , and invite everyone , including Margo , to his Cinco de Mayo party , Gru renews his focus on Eduardo . Afterwards , Gru is set up on what transpires to be a horrible dinner date with a vacuous woman named Shannon . During the meal , Shannon notices Gru 's wig and is about to humiliate him when Lucy , visiting the restaurant herself , renders Shannon unconscious with a tranquilizer dart . They take Shannon home and , after spending personal time with Lucy , Gru comes to realize that Agnes was right ; he has fallen in love with Lucy . 
