I do not want to have multiple boyfriends. I just want another female that me and a primary can share. Like more than a threesome but less than a poly family… Is this weird??? Is there a name for it???
The general term for this is “unicorn hunting.”
You didn’t ask for my feedback on whether this is wise or not, but you did write to my advice column, so here goes: people are not sex toys or objects to be “shared.” Please think very carefully about why you want this arrangement to be you and your partner sharing someone else (instead of all three of you dating on equal footing) and why you clarify that this would be “less than a poly family.”
Wanting this kind of arrangement is not “weird” in the sense that it’s very common, but it also can create lots and lots of problems. Be introspective and honest with yourself, your partner, and your unicorn about exactly what you want, what you can offer, and why.