I'm not an actual novel reader, I just looked at the last chapter to spoil myself lol but they end up having children together. I think multiple, but I'm not entirely sure. Seems like they have a happy life. The son at the very least is content, he makes a comment about how at first he was in control of his dad, but now it feels like his dad controls him (because of how whipped he is)

some novel readers wanna spoil the ending for me?