I think he just didn't want to make her feel uncomfortable by forcing her to sleep with him. Since it's not the usual marriage. The only reason he even tried to force her to marry him is because he wanted her by his side, even if she hated him or didn't love them. So right now, they're in the dating phase of their relationship, even though they got married. That's my best guess anyway
I thought in this kind of historical setting, the husband and wife have separate chambers. The husband will visit the wife’s chamber when they wanted to sleep together. Correct me if I’m wrong.
That was going to be my original answer, but it depends on the story, and how close they are. In the future, they'll probably always sleep together
Aren't they married? Why they sleep in a separate bedroom