>. If at the beginning of the relationship some limits are clear, I don't think that spending time doing things individually can create a conflict.

My question is where is the line? For example, if you and I are in a relationship and I play games an hour a day and you are fine with that. But, after the honeymoon period of the relationship I start increasing the time I play - at what point have I "broken the contract" that you first agreed to?

>She did not like to dance, so she decided to learn just to share with her husband at parties. Now the two of them even dance at her house

A happy compromise. Often dancing is one of those things that people don't know they love til they spend time doing it. In some cultures (Finland these days) dancing isn't the norm - so most have never really danced socially. It used to be how people met here though :)