When you are in a relationship, are you one, or one of two?

In my relationship I am very much one of two. He is my main concern, everything I do, I do for us. He is like that also, although I don’t expect it from him, it is nice.

I see people who say the same, they are lost without their s/o and they are part of a team. Then, I see people that say they still want their single life also, and that their main concern is themselves and if their s/o doesn’t like it then tough. To me that isn’t a relationship.

What is your view on this? Do you live for you and your s/o second? Or is everything you do built around ‘us’?