"Oh, no, you're not being nosy at all! I'm just... not really sure how to label it, if it needs a label."

He leans back in his chair, rubbing his fingertips over the angle of his jaw awkwardly. "But I don't think it's soul. ...Mates." He is never going to stop blushing. "It's not like we were drawn irresistibly toward each other. It's not like we get together in every universe or anything. We haven't really even done that in my universe yet. But I know that I like him. ...A lot. And I know that in another universe we were together." He fingers the chain around his neck absently. "But in his universe... This him... I don't know if that's something he'd even be interested in."