I did read to chapter four and I think there was misunderstanding since I'm thinking that ML doing it by purposeㅡ and let his wife seen or think something about that. I don't know what he is thinking but I will give it more shot since the angst are kinda interesting. Also their son is still a baby so I don't think he saw about that. Their pasts also hold lots of angst, hatred and mystery itself
I will not continue on this one. There are a lot of excuses, and the author paints the ML like "it was just misunderstanding, I'm protecting her from harm" troupe when he could have said the cause why he is doing the healing from the saint, in fact, he let the saint clung to him a lot. I did some digging on this manhwa in the novel, and it disappointed me so much

Do I need to read this, guys? The spoilers I got from other social media are the saint is so clingy with the duke, and the duke is just letting it slide. I saw that they both wear a bathrobe and the saint is clung to him. The third image shows that the son also witnessed it with his own eyes and their affair.