Whenever guys have had a real intense relationship to a girl and they talk about it, they will tell you what changed in their behaviour: How they learned to work as a team, how they arranged their various interests, how to set up plans for both of them, how to keep an eye on the welfare of the other one.
Still, quite a few girls dominate a relationship because they set up their own private language guys have to follow: There are special looks, quite hidden to others, men must realize. Special words as broad hints you have to identify on the run. This is not meant to be mean in any sense, you just turn out to be a specialist in that private language.
Here is one of them. The great morning difference between snuggling and rubbing: