Native English speaker (English) here and I've just had to wipe my screen after reading your second paragraph. Pretty much the only reason I can tell you are not a native writer is by the content and the points you are raising.

Non-native speakers are more easily recognizable in their language use when they need to use proper vocabulary during emotional conversations.

My favorite mistake (made by yours truly):

"I feel upset."

"Oh, I also feel angry."

"I said that I feel upset..."

"Yea, angry, me too"

"It's not the same."

"Wait, what? How isn't it?"

Emotional conversations with a native English speaker are harder because of this. I learned to get a bit better at it as my SO speaks Dutch as well.

Having the same conversation in Dutch with the same words and sentences yielded very different discussions. IMO, the research that people talk and think more rationally in a non-native language rings true.

I can see how that did not work out well! To be honest me and my SO can diverge like that without invoking another language. Usually it is me expressing bewilderment.

<quote>Instantly switching languages is hard though.</quote>

You don't say... when I'm in a situation where I have to speak two different languages to different people at the same time I sometimes end up using the wrong language with the wrong person. Really funny in retrospect but it greatly confuses everyone.