[its_a_random_ac]

Pretty good overall, except for a nit pick:

> Person B: “…. Hey, sorry to interrupt, but the story in my head is that you think owning that number is part of my job, and now you’re upset with me, or you think I’m incompetent at my job.”

Depending on the exact phrasing and group and company dynamics, I'd be worried a bit by saying something like this because Person A might think I'm trying to push off work or responsibility for some metric that I'm tangentially responsible for.

[blackkettle]

Same thing with “try to sound friendly.” Please and thank you are essential. But there are few things I hate more than cloying emails that start with “Hi!” (the exclamation point is the problem) and emoji are definitely worse.

Being polite is professional and shows mutual respect; IMO it implies an intention to build trust.

Affecting the trappings of friendliness or even loose intimacy in a professional setting or any setting where the relationship is in a rough spot has a strong chance of coming off as disingenuous.