<human>: so the situation isn't much more complicated than the title reads but after she posted it, I just asked her about it and her feelings on it and let her know that I was wondering if she felt that she wanted a polyamorous relationship. She got really defensive and angry and said that she feels like she shouldn't have to reassure me about our relationship and that she is only with me. Maybe I am overthinking it, but I don't understand why she posted it then. Does it seem weird or was I really just reading into it too much?

Can you succinctly summarize the text in 1-3 sentences?
<bot>: girlfriend posted a pro polyamory article on Facebook, didn't know how to take it, so I asked her about it. Now she is angry. What should I do?