Are you nuts?!
There is: Adoption, living together, girlfriends, nieces, nephews, brothers, sisters.
You sound like a bitter female, ex of someone.
They have their own life. Your spouse shares yours!
It's an OK choice to be alone, but don't fool yourself, you may die alone and as long as you don't mind dying that way, thereisn't an issue.
Some people are not meant to be married anyway.