(The real life history here is basically right -- Victoria did try to cancel Albert's upcoming visit in the summer of 1839, because she wasn't convinced she wanted to get married. However, this happened at the same time that Lady Flora Hastings died, an event that unleashed public fury on Victoria and Melbourne. Her mind was probably not really on happy marriages.)
Immediately after he arrives, Leopold commits the cardinal sin of this television show: he calls Victoria short. Look out! He also points out (correctly, but awkwardly) that if his first wife (Victoria's cousin, Princess Charlotte) and their child had lived, she would be Queen and he'd be the one living in the palace.
Stay tuned next week for another bejeweled recap of Victoria!