Keep in mind that most unicorn hunters have some unrealistic expectations and you'll be fine. Not all of them do, certainly, though enough do that it can serve as a red flag for potential troubles.
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.