This is odd because فيصل is not Lebanese and the show is not on a Lebanese channel, Lebanese very frequently use English or French words and expressions and sometimes complete sentences. Why did he used English? well, It might be to mitigate his guest's anger and emphasis that he has empathy with his opinion. I am suggesting this because when I am having a conversation with some of my close friends I usually try to use words or sentences form a foreign language that they know even if I don't speak that language well. However, if I am speaking to someone who doesn't know English, for instance, I never use English words that he/she would not understand... I guess that they consider it rude because it would seem like I am trying to show that they are lower of me because I know English and they don't or something like that.