Yes, and no. She's proven that she's worthy, yes. But she still isn't quite princess material yet, if you ask me. Besides, in my opinion, she isn't even a real princess. Firstly, she doesn't lead any kingdom, town, village, etc. The whole point of a monarchy is so you can have someone in charge of taking care of the land and its people. Also, the show hardly seems to recognize her princess-ship at all! Where are all her servants and lady's maids? Where are the chefs, the royal palace guards, the assistants? It's like she doesn't even exist aside from a few oddly placed meetings with other officials. That always just kind of bugged me, to be honest. I hope they address it in season 7. Please?