Rishe has kept a certain activity of hers secret from Arnold, but when he appears right in front of her, there's no escaping his notice. Later she learns that Michel believes Arnold fulfills every condition necessary to conduct a particular experiment.
I don't know what it is 
you're apologizing for.
لا أعلم ما الّذي تعتذرين لأجله
No sé por qué te estás disculpando.
No sé por qué te estás disculpando.
Je ne sais pas
pourquoi tu t’excuses.
Non so di cosa ti stai scusando.
Não sei por que está se desculpando.
Не понимаю, за что ты извиняешься?