Hi, Linda!
Awww, that's the scene I was talking about!
Thanks for posting it!
Well, I've seen some of Jordan's other work, and he doesn't seem all that interested in the romance stuff. I think the Cesare/Lucrezia romance on the show was more collaborative than anything else. Yes, Jordan wrote those early scenes, but his initial idea for Cesare and Lucrezia is that they'd be perfect spouses if they weren't related to each other, so they kept seeking out love from other people who were basically their backups or replacements. I don't know if Jordan ever intended to take them as far as they eventually went in season 3, or if he intended for their incestuous subtext to be anything other than implied.
I think the inconsistency we saw in season 3 was an indicator of this, like Jordan really didn't know what he wanted to do with them, which was really disappointing. I do agree that their season 1 scenes were beautifully written and almost tragically romantic, as you could tell that these two were perfect for each other and the only thing holding them back was the fact that they were siblings. But I'm not entirely sure that Jordan himself knew where he was going to take the story in future seasons, and we can thank Holly and Francois for having the insight into his writing to insist that Cesare and Lucrezia take things to the next level.