This resonated with me so much. I've been abandoned by a gay-for-pay guy I fell for, though it didn't go nearly as far as your experience did. I still remember the hurt, the anger, and the grief.
What helped me the most were gratitude and forgiveness. Even though I couldn't express those to him directly, it helped to remember them. It also helped to consciously and repeatedly forgive myself, too - for being lonely, for becoming attached because of unfulfilled emotional needs, for looking for love in a transactional relationship.
That experience made me very jaded, though. It's hard for me to form any real connection with escorts now. I'm more cold and far less trusting. I assume that every message exchanged is being done with the expectation of future payment. It's made absolutely everything transactional, so much that I tend to not start any conversations not about meeting. I also assume that every compliment is flattery.
So I'm at this point where I think everything about relationships that include paid sex is fake except the desire for money. That pendulum might have swung too far in my case.
I hope you find the balance that works for you. And I hope you're able to find people that fulfill your emotional needs, escorts or otherwise.