Re: question
Hm, it's hard to say because so much about them is linked to who she is and the position they're both in - see above for my notes on Aramis liking the danger of unobtainable people, nevermind the fact that Anne is in an unhappy marriage, feels isolated and ignored, and is not attracted to her husband despite caring for him, and that their initial spark came from him rescuing her, both that and the eventual getting together highly connected to her position as Queen, and his as a royal guard.
If there had been an equivalent situation - if Anne had been more like Constance, say, with an unhappy marriage in a lower position, with Aramis ending up protecting her as a civil - then absolutely, I think they would've still fallen in love and gotten together, possibly having to wait until this non-kingly Louis died to truly embrace their relationship, or eloping together because fuck the rules. The circumstances that brought them together were related to their respective positions, but Anne's loneliness/unloving marriage is transferrable to other scenarios, and their true bond happened over other things. His protecting her, her willingness to help out and not be coddled, their kindness towards each other, bonding over their mutual grief, the simple fact that they find each other stupidly hot, etc.
Aramis doesn't really let himself think of what-ifs in this case because it kinda would drive him crazy, I imagine. He seems perfectly happy when Constance and d'Art get together in 2x06 (as is Anne) and neither shows bitterness that their friend can do this while they're unable to. But he'd agree with me in that he would've still loved her, not so much out of pointing out specifics but because he's a silly romantic and OF COURSE HE WOULD HAVE!!11!, who needs to think it out thoroughly.
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What is an aspect of your characters you wish you could portray in the game more easily? Or a kind of CR specifically that you might not be able to play out because of lack of fitting castmates/characters, like say, Jamie and a like-minded villain, or Stiles and his father, and so on?