excuse me!? Ndooka WILL end up with Negi in the end. She's the only one with a romatic relationship going for her with him.
Ayaka's is only obsession. Yue's is pretty much to herself (even though Nodoka knows). Ayna is only a childhood friend. And Asuna likes older meen.
Nodoka is the only one to confess her feelsings (twice) and give Negi is 1st true romantic kiss. (non-pactio, forced, or possessed kiss) And she;s the 1st girl negi thought on in a wedding dress.
Akamatsu has a habit of making the 1st girl the main male character thinks of in a wedding dress the one that will end up with the main mail character. She's already way ahead in the game.