Anne walks in on you with Thea and she goes nutz but it's fine if she has sex with the girl from the gym behind your back. What a hypocrite.
I would personally be somewhat mad that she started without me or not called to ask if I wanted join.
Though she still goes through with it if you just stay out of the room.When Ann said that, she just meant the woman is attractive enough to get the attention of both genders. All throughout the story she's been misunderstood. MC thought she was fucks just about anyone but it turns out she doesn't and is more the submissive type and very sexually active. When the MC says its fine for her to be with someone else she still won't do it without the MC. Quite some fidelity in perspective. She may be horny as fuck but she's a romantic.
I would personally be somewhat mad that she started without me or not called to ask if I wanted join.