i honestly think its because of asian culture. saving face is a lot more important there rather than just being direct.
plus i'm not sure if its just a japanese thing, but they also rely heavily on nuances and subtleties (and people who don't get the nuance are treated like morons like Jax was).
For a poor, naive soul like Caesar, there's a shoulder angel and devil on his shoulders. One is a wing-bro, and the other is Jax.
Let's hope they get this sorted quickly. The drama took a steep hit, but Caesar managed to be fairly rational through his jealousy.
This time I hope the two will settle down their misunderstanding the story has changed from the original novel, so the dense Canaria should realize that Caesar's feelings has changed too