There's probably no way I can say this that doesn't sound bad, so... hear me out before you say anything. [ She might not be nervous, but he is. He licks his lips, makes an attempt at a start. ]
You know the, uhm... the beach party? Me and Leia, it wasn't.... it wasn't just dancing. We kissed. Just once and it wasn't... it wasn't planned or even really... anything. A spur of the moment thing and I like her as a person but there's nothing going. It was just a thing that happened.
[ It's not like he cheated here but it still makes him anxious. He doesn't want to risk upsetting this friendship they've got going again. ]