Miranda is so full of love and joy she has to spread her energy no matter what.  When Kon catches her eye it must be fate, but he just keeps ruining it.
And "I'm totally not doing 
x or y" is the standard
Y "definitivamente no haré 
esto o lo otro" es la línea
Y por cómo lo estás diciendo y tal, yo diría a priori
E "Eu não estou fazendo x ou y" 
é o padrão