I dont think this gets said enough but..
If your polyamorous, not all of your relationships have to be open to other people.
Your allowed to want your current relationship to be exclusively monogomas and it dosent make you less polyamorous.
Your allowed to feel how you want and have your relationships be however you want and no term you identify as has to change that.
Polyamorous people dont have to let anyone into their relationships if they dont want to and guess what? They are still polyamorous.
Being polyamorous dosent mean you have to date multiple people all the time or being sexually active with multiple people all the time. You can want to be single and you can want to have a few of your relationships be only monogomas.
Let polyam people decide how our relationships work.