This reminds me of TXJ (2.0) and CWN relationship from 2HA
I didnt like him at first cause the first third of the book was just so painful.( Was literally shouting). But finding out the reason he became TXJ in the first place redeems him. And it proved the theme of selfless love both characters had for each other and the lengths they would go.
But yeah complicated misunderstandings is how the entire story came to be.
The novel its based on is translated. You can find it on novelupdate if your curious.