At last Haruki realives Kazuma's true feelings, but while he's confused at this sudden turn of events he can't hide his joy that the girl he loved best likes him too.
and do the exact opposite 
of what I feel like doing.
und mache das exakte Gegenteil 
von dem, was ich tun will.
y hago justo lo contrario 
de lo que quiero hacer.
y hago justo lo contrario 
de lo que quiero hacer.
e faço exatamente o oposto
 do que quero fazer.