When a foreign envoy attacks my unit (prowler in this instance) then a notification pops up to notify that the owner of the foreign envoy "forgives me for attacking". How? I haven't started the attack nor am I in a foreign territory. This makes zero sense.

Another example of the game making no sense to the player and doesn't work the other way around, where if the player was to carry out this action it would generate a grievance at the very least. Fix it.