Don't place all your bets on her 'coming around'. She can't change her libido anymore than you can change yours. I've been here before, wishing I had no libido so that I could be on my SO's level if she couldnt get to mine. Doesn't work without a profound phsysiological change.
Based on your current sexual frustrations, that holding out hope will only put pressure on her and build resentment within you and between you - it's gradual and happens over the years.
You won't want to believe that, but your patience and understanding of your current situation can't win out against your libido and frustrations. Imagine being in the same spot 10 years from now, how would you feel then?
You need to take a different path than the one you are on now to achieve lasting happiness. Sadly that means one of 3 difficult things. Whether one of these is easier in the long run than your current situation is up to you to make.
Find peace with the fact you will not have your sexual needs filled to the regard you want if you stay on the same path.
Arrange a FWB situation with your SO's approval. I know you don't want that, that you want your SO to fufill that need, but that isn't how things are - thats how you wish them to be. There are plenty of "no strings attached" ways to approach this that allow you to get release and in turn become a better partner emotionally to your SO since you won't have that libido nagging at you as much when you are with her.
Leave your partner and find someone who has sexual interest.
Remember that TV would have you believe sex is always 100% a given in a relationship and that its always great. The truth is that most people go about their lives not sexually and emotionally fulfilled. It's up to you to find the balance that will work long term for you, whether mentally changing your viewpoint or moving on to different scenarios. Don't stay in the same scenario without change or you will only feel resentment and regret in the future for feeling trapped