Cool, we ignored main argument again I guess. Wine dialogue is that she only say's "not today", both side can headcanon this I agree, alright.
Can you tell me what I am "headcanoning" in her poly proposal rejects though? She just says no. "In truth, I don't think I'd want to be your spare lover. I'd always want more of you than you'd have to spare."
As I've said repeated. That interpretation of the words is not inconsistent with a desire to be a primary parter / nesting partner / ect.
You may not like my interpretation but I have responded to that point repeatedly. I think you have shallow reading of the conversation and that my interpretation is consistent with the options in chapter 3 while yours are not. Which is the point of this thread. A small number of high engaged people would like to see their interpretation of SH be the only one.
But thats headcanon on your side though? What makes you think that she is "threatened" by 5 origins, but not by Halsin? My interpretation about her being monogamous and ok with open relationship is also consistent, is it not? Only that I consider Halsin as a fling. The only difference we have here is that you continue to classify her as default poly, ignoring the fact that she rejects said "poly" in act 2. Her lines about this are as blunt as they are. Your description with different classifications of poly relationships is just an attempt to "shoehorn" her into being poly and thats what I consider headcanon from you. I agree that wine dialogue can be read differently and hence we get 2 different "headcanons".