Joao Flavia and Valentina

I remember when Joao said he spoke Spanish then said the same thing 3 times to prove it and I was like that’s bs. But then when his message from his mom was all in Spanish(edit: it was Portuguese I’m sorry) I was like huh ig I was wrong. Then I saw something saying that him Flavia and Valentina were having majority of their conversations with each other in Spanish since it’s what they’re comfortable speaking and they had to re-record conversations in English because producers wanted them to.