Ah, yes. I had been wondering about that. I think the biggest thing is the ESB kiss. Everything else is okay. If you can somehow cut from "I guess you don't know everything about women" smoothly to the shot of her leaving (presumably with some kind of reaction shot or something in between), you can just do it that way, with Luke's expression now simply meaning "Ha! You just got OWNED!" Ideally, this shouldn't even have been an issue. Personally, I've always rooted for the idea of Leia not being Luke's sister, and them being together. Oh, well...