He's working up to it, the point of coming over to her. Eames just wants to get an idea of what her feelings are exactly, which isn't the easiest task with how taciturn she's being, but it's not the same as being unreadable.

The mention of vampires gets a scoff from him though, genuine disgust at the thought of them, and he shakes his head, "don't get me started on the vampires. It's disgusting."