Gustave has taken it upon himself to observe Marion and Sanglain following the death of the Princess and DT.   But KT thinks Gustave is in the city of Marquesas for other reasons. 
Don't take it personally, 
it's work for us, too.
No te lo tomes a pecho, para 
nosotros también es trabajo.
No te lo tomes tan a pecho, que para nosotros es trabajo.
Não leve isso pelo lado pessoal,
mas é o mesmo para nós.