[And half the plot in Ciel's show is about how friends, even beloved relatives will betray him at the drop of a hat. They're at an impasse.]
I don't know who you think Sebastian is, but he would no more wish to be my friend than I, his. Let it go. Be content that he's willing to count you as a friend.
[Steven, Sebastian's using you for your Lion-action, why can't you see that?]