I have always believed that there is heavy symbolism in the Star Wars films and the scenes between Anakin and Padme while on Naboo are just some of them. What we have here, in the process of going from the meadow scene to the love confession scene, is a symbolic representation of Padme and Anakin's adult relationship (I say adult to filter out their meeting and coversations for TPM). First, we start with the way that they act towards one another. The is an air of lightness and carefreeness (is that a word?) in that scene. They talk, joke and flirt. Anakin tries to ride one of the creatures to impress his love. This is the beginning of it all, when nothing else interferes or matters. We then have the dinner scene. A touch more somber. It is basically Anakin showing off and dominating the conversation. While he still is fixed on Padme, everything is about him from his lines about "agressive negotiations" to how to manipulates the fruit. This is the start of the downfall. Then the fireplace. Very intense. Eventually, the two end up arguing and Anakin basically leaves. Although they still love one another, there is a rift. We also have the lighting effects. Notice how we start off in a well lit area. Things are bright to start off. Sunny. Clear skies. We then move to a sunset, darkening, representative of the beginning of the end. The darkness of the fireplace scene finishes it. There is only a tiny bit of light left of what used to be bright. However, that small light never goes out. That's the driving force. To do this so wonderfully is a testament of how well Lucas thought these scenes out.