Is this a special camilla its 2 different colours on one plant?
Not only are there 2 different flowers, some are mixed coloured too.
It's probably reverting.
..yes it's a special Camellia as so many people seem to have it. I used to have it too..
It's very common for this Camellia to produce several different coloured flowers on the same bush, they are what's known as 'sports'.. if you look up on Google the variety 'Lady Vansittart' you'll see lots of examples.
So you've actually got 3 Camellias in one there..