You were the one of the first people to recognize grell as a woman.

ever since then she's fallen in obsession,not love.

you managed to charm her more than sebastian michaelis ever could. And you don't dismiss her constantly

you actually pay attention to her when you're not busy.

grell is known for not following the rules of a reaper. She will erase you're name from the books just so you won't pass away

she'll keep you with her one way or another. Even if you're a human