No. I, however, am old and fully understand that anybody with whom I get involved is going to have a history with others and may be making a history with others--it's been this way for enough years that I don't even notice much of that sort of thing.
Which is a roundabout way of saying that it's new and out-of-the ordinary for you now and in time it will be completely normal. Weather the little storms with grace and they'll stop blowing up soon enough.
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.