If I was in a situation where that a girl (maybe with her friend came with her) and started to talk to me, and we get along well for a while and last for say a month of getting along with each other. Let's say we went out as a casual date here and their, and she brought up being a couple and she doesn't realize that I'm interested in polyamory relationship and I don't know how to bring it up without scarring her.

(BTW I haven't had this incounter before, because I'm a shy, introverted and a homebody person that would like to be more out their).

Any tips on bringing this to her attention or whatever? All of this is in future if all of this would happen, I know this would most likely not but if it did.