I feel like this story is getting stretched out, im lost on the plot after their marriage.

It’s not stretched out, it’s the releases or translations that are

As for your question, they’re in the brink of war with her father’s side, and they’re hoping it won’t happen. The Queen feels odd because she’s attached to her and doesn’t know that the FL is actually her daughter, which the FL was hiding by in the first place because she doesn’t want to be Queen and also because she wouldn’t have been allowed to marry Noah.