I just thought this up one day in full.
Basically, I was thinking about, how do the cubs feel? The cubs of the Outlanders. They've been through a lot. We don't know much about those older than Nuka who are now adults. We do see that Nuka is very complicated as a character, with significant parental issues. Vitani is mature beyond her years and grim and sardonic. Kovu seems caught up in the between of being a bit spoiled yet having many expectations piled on him at a very young age, not sure how he feels about anything.
We do see later that Kovu was taught many erroneous things about Scar as a leader, a father, and in general, so I think it suits that there's quite a bit of distorted perceptions and misleading, and, on Zira's part, brainwashing, likely because of her hyper obsession with Scar.
So basically, here's my idea of what the continued conversation about Kiara and how Kovu became inspired to carry out his appointed destiny.