I think I might be poly? I am a female and I am dating a man that I absolutely adore. But also I want to find another female to be part of our relationship.
You might be poly, you might not. The key here is to figure out where this desire for another woman to be part of your relationship is coming from. Are you feeling isolated by being part of a couple, and want more intimate female companionship in your life? Are you feeling an attraction to women that you want a safe space to explore? Is this emotional? Sexual? An intellectual curiosity about polyamory? What’s your best case scenario?
Bringing other people into your relationship complicates things - it’s not a solution to an existing problem. If there’s an issue you think a third person would resolve, you need to identify and resolve it before you two are ready to invite a third person in.