Imagine Loki grieving for you. He thought you were dead after his attempt to conquer Midgard. He's been close to you and it has broken his heart knowing that you were no longer with him.
"Hey, Floki or whatever you are," - he heard your voice and got confused before turning to you. Of course you would never mistake his name, rather, you would mock him the way he mocked you. That was the way you expressed to each other your love.