@Corym one last piece of advice that I think might make you feel better soon: while you are on the quest to find love, ditch her right now and get yourself a good sugar baby instead.
I said that because, 1. It might take a while for you to find love, and if you don't want to feel lonely in the meantime, a good sugar baby is going to make up for the lack of affections in your life.
2. According to what you have described, you pay bills and take care of her, and she doesn't want to give you affections, it almost sounds like she is your sugar baby who is not doing her job. She is not your partner, wife, girlfriend whatever, you are paying her bills and feeding her, she's like your sugar baby already, but she's not performing her duties as a sugar baby. If you don't want to change the way you live your life way too soon and drastic, find a sugar baby who you can continue giving your affections to, but she will appreciate it.
Until you meet someone who loves you for you, and this time it will be easier to end your relationship with your sugar baby, because it is an arrangement.
Your current relationship is my worst nightmare, because I also tend to care too much for women I love or catch feelings for, well, used to. Now I have awaken, and your situation is why I am not trying to get into relationships and be trapped and used in it.
All the best bro