Sorry Muddy,....no burst bubbles, its just at the beginning of your debate you seem to use ROTJ insight
I never had a problem with that. I always took that line to mean that, while she WAS using Luke to try and make Han jealous, she was also testing to see if kissing Luke DID in fact feel as wrong as she thought it would. Not so much a kissing of literal siblings, but more of a "Yup, that FELT like kissing my brother". And it was only in hindsight that Leia said to herself "oh THAT'S why it felt like kissing my brother".
That's taken way out of context. That's a discussion about how I view the line in ROTJ, not a discussion about how I view the kissing scene in ESB. Again, wrong film.