I'm new, so forgive me if I've missed something please. My beef in this addition to the Thedas universe is that if you are female, you must stalk your intended. You have to make the move, you have to do most of the flirting, you have to be the one that hits that heart response on the wheel. In DA1, Alistair gives you a flower, Lelianna complements your hair. I think in DA:I Blackwell does say something complimentary. Anyway, maybe I missed something but would have nice to have more of an advancement in interest by the npc.
DAO is deceptive in this regard because there aren't heart icons or the like to indicate that a line is a flirt or shows romantic interest on the part of the PC. But there ARE such lines. People often complained about being "ninjamanced" by Leliana because the dialog options can come across as vague, particularly if you're a female who might want to talk to her in a close, girly way.
But you do have to keep in mind that this is also fitting for some of the LI. Cullen is not going to initiate as that's not his personality. Also, given Dorian's history (yes, I realize you were talking about the female PC, but the LI initiation still applies), I don't think he would be inclined to initiate either and barely even responds to the PC's initial flirts.
But people also complained vigorously about Kaidan hitting on male Shep and there were no rivalry points involved there, so who knows.....?
Well no, we know what at least part of the issue was with some people...
However I will say that even as a fem Hawke I was never crazy about that first path anyway and even on my Anders romance plays I avoid it entirely by just picking the purple option and use the Act 2 flirts to start the romance. The version for a fem Hawke where he states that he will break your heart and so forth after they only just met is, IMO, absurd, made even more so because of the fact that a male Hawke does not get those lines and gets alternate ones about Karl instead. So, he isn't worried about breaking male Hawke's heart?!
DG once responded to a thread where there was a long, drawn-out argument about this issue and basically stated that it was silly to expect Anders to tell a woman he was interested in about his romantic/sexual relationship with another man. (Never mind that some of us think that's hot, but I digress...) But my problem was always with the drastic difference in overall tone between the gender options. Then again, Anders is an extreme person, so it's not too surprising.