They don't like it but even when they don't like things it is barely visible on their face. So what Cu sees is a perfectly neutral expression. One that doesn't emanate anger, frustration or sadness. There isn't determination either. It is merely something Enkidu is trying to accept for now. That they need to bond to survive. Because to survive means that they spare Gil the sight of them broken.

"I am truly sorry, for my reasons are merely selfish and born out of a hope to see my friend again and to face him the best I can."

And it is a bit foolish to hope. After all, who says that the Coven would ever summon their friend?

"But I thank you."

It would mean they'd share a connection to a Heroic Spirit they barely know. And it isn't that Enkidu is scared of sharing but what they feel is mostly heavy, complicated and full of nostalgia.

"I will put my trust in you then. If you are willing to trust me as well."

Their voice is soft, barely a whisper. There is no certainty in it, no regret, nothing. It is as neutral as everything else.