European who’s dated mostly in America, although not all of them were from the USA. In Spain I’ve had, how to translate it… one-night gropes. Nothing in other countries.
I think of “exclusive” as starting on date #2. If we’re introducing each other as bf/gf, definitely exclusive unless one of the two has specifically asked for “open” or for being able to date other folk (notice that “movie and dinner with friends” is not the same as “movie and dinner with a friend” is not the same as “movie and dinner date”). If he’s asking me to marry him, that’s about as exclusive as it gets.
Recently, these friends of my brothers’ were visiting them and the guy referred to the girl as “my girl.” She turned upon him like a flock of Furies, “what do you mean, ‘the girl’? Either ‘my partner,’ or ‘my woman/wife(1)’, but if you call me your girl again I’m moving out!”
(1) in Spanish it’s the same word. The words for gf and bride and for bf and groom are also respectively the same, so calling someone your bf/gf is equivalent to saying your “intended.”
The guys who only lasted one date were all American.
The guy who lasted several months and who wanted to go from not touching me to bed was American.
The guy who was asking me to marry him but who thought that bedding other people without rubbers was something I had to accept because “a man has his needs” got his US citizenship during the time we dated. Originally he was a Jamaica-born British citizen.
The guy who I would have married if he’d been better at listening to me or I’d been better at interrupting him was an American citizen, child of Costa Rican teenagers, his father had ended up a Southern Baptist and his mother a hippy with “octopus Mom syndrome” (his stepdad liked me). He butchered what little Spanish he could speak, but AFAIK he’s sequentially monogamous (he later dated another friend, it was cute how nervous he got about us two talking about him).
Middlebro was called “SiL’s bf” by SiL’s friends for about three months before SiL finally accepted a date with him. They reckoned that “you’re always talking about him, you’re on the phone with him a lot, you look forward to seeing him, when him and his chaperoning friend join us you only have eyes and ears for him, it’s like there’s a pink cloud around you two… girl, there’s no way he’s ‘just some guy’!”