This right is applied per entity.

If I send it to the company A, company B doesn't execute it unless they're a subsidiary of A (or A is their data controller) and my request was carefully crafted.

In the scenario you painted, that would mean that my _former_ friend has issued their request to me.

In that case? Fair. Poof if that's their wish.

Otherwise? How do you imagine it work?

I think I should have the right to remember the things I see.