There's never been much if any? Cleria has had a crush on him for ages, but as the chapter mentioned this chiefly a political union. They've talked about this before when they were initially laying out the plan, and while there was misunderstanding due to miscommunication and differing values at first, Alan begrudgingly agreed to this arrangement when he was confronted about it by Iris. I know it's been a long time since then, but I'm fairly certain it's all there in the older chapters.Wait… Suddenly? I didn't feel any romance between them at all…
The weakest marriage proposal panel you've seen in a manga yetthat is the weakest marriage proposal panel i seen in manga