Exactly. When I was single, anybody interested knew that I arrived with a son in my custody and a daughter living with her mother. Anybody getting involved now knows I have a son living with me, a daughter with her mother, and a wife.
And anybody who thinks that they can get me to change that is simply being rude and dysfunctional to the point of being evil--they know they're doing wrong and pursue it anyway.
When speaking of various forms of non-monogamy...it ain't poly if you're just fucking around.
While polyamory, open relationships, and swinging are all distinctly different approaches to non-monogamy, they are not mutually exlusive. Folks can, and some do, engage in more than one of them at a time--and it's all good.