[He listens to Luke's words and finally shakes his head.]

I think tired is the right word, Luke Skywalker.

[Loki stops in his tracks and turns around again. Ah yes, his word. Almost forgotten...sort of.]

I shall, but I have one small request, older self. Agree to that and you shall stop to exist for me as well, yes?

[The look on his face hardens.]

Desist from contacting Leah.

[Of course Leah is perfectly able to defend herself and make her own choices, but she is also his bff. The bff of all bff's. And she would probably kick him in the groin for demanding such a thing. And pummel him.

And actually, he would not care if she chose to do so, as long as he was able to protect her.]