Hi, im an argentinean living in argentina. I agree with most of you about the argentinean, probably latin jealousy and outrage traits.
I lived in uk where i was in a relationship with a british guy for three years and I have to say that these cultural differences that you mention here may be a problem unless you find the way of getting over them.
Personally i suppose i was fiery -i know it's cultural though-, I’d say immature more than anything. And this was probably at least one of the things that spoiled our relationship. However, I think i really did change living in that country and actually merged with their culture, which is really hard for the moment you have to get back to your place of origin. I came back here considerably changed, with different ideas and outlooks on life, different food tastes and different sense of humour, etc.
So, then I felt it really difficult to fit here again, which is a bummer cos I was still a foreigner for british people but also felt a foreigner in my own country.
Anyway, I’m even making a very amateur short movie with a group of people from a cinema workshop as I find this subject so interesting and startling from the point of view that only being an Argentinean who lived in a different culture can you realise of these facts.
Also you can’t absolutely generalize about these things. I’ve met cool, laid-back, chilled out people in Argentina too, even though I suppose they are a minority, but they do exist!
I bet if you gave the chance to those jealous explosive argentineans to know better, they'd probably change.