[Catfish]

I know (and i even have a screenshot from flight radar at this day) the drone was flying in international airspace with its transponder turned on. -> Otherwise it would not have been visible in FR24.
Reapers are flying around the Black Sea since decades, always with their transponder activated.

Russian jets tried to hamper it dropping fuel in its flight path, and then even rammed the drone from behind so its push propeller was damaged in a way the drone had to make an emergency landing in the sea.
All this happening in international airspace and waters.
They could as well have used a missile or some gun with the same effect.

"Unfriendly" does not quite describe this.
Obviously an attempt by the Kremlin to test the response of the United States.
And now Russia wants to retrieve it?

Apart from the US rescuing the drone, I foresee some further US action, preferably not made public.