I'm italian and have an American girlfriend.
One of her old friends asked her to go out together, alone, for dinner.
When she told me about her friend's invitation, I cringed a bit, but I told her that I'd feel much better if she could meet him for a coffee or something less "deep" than dinner.
I let her know that I ddin't wanna impose her anything, that she's free to do whatever she feels is right, but I just didn't feel comfortable about it, in my mind and in my heart.
I don't know this person at all, all I know is that he recently divorced to his wife and that he's going to town (where my gf lives) cause his girlfreind is having a surgery.
So, I was like "oh so you guys are all going to have dinner together then?" The answer was "no", and that kinda upset me.
So I repeated to her that I'm not fine with it and she told me that I don't trust her. But it's not that.
I explained to her how it works in Italy, once you are in a relationship with someone, you just don't go out alone with someone of the opposite sex, we just don't do it, it's an unwritten rule, some sort of respect towards the partner.
So, she told me that it's exaggerated and that in America such a behavior would be considered a warning sign, like partner being a controlling freak.
I pretty much failed at making her understand that I'm not a controlling freak or trying to impose anything, but at some point I felt overwhelmed by me failing at making my point clear.
So, tl:dr, I'd like to know from you guys here, if it's true that in America going out alone with another opposite sex person is something common and normal and that the other partner should stay out of it.