User blog comment:B214/LN spoilers/@comment-1359322-20151116020005/@comment-1359322-20151117234848

Ouma is indifferent to everyone, not just Ikki even Shizuku & his own father too.

And Ouma protested their relationship earlier because he felt that Ikki was narrowing Stella's view on strength. There are many powerful opponents in the world, Stella is limiting herself to surpassing Ikki only.

Well i can understand your feelings on Ouma though, i don't really like him myself. Just don't hate him either.