Don't lose hope just yet! My DH is avoidant, and I am anxious. It's literally the most difficult paring in attachment world! It doesn't mean it can't work, it just means you have to work a little harder at understanding each other.
I am so sorry you're both so unhappy. I have been there! I listened to the podcast on my own at first, and started implementing the small changes myself, and learning to recognise within myself when I was acting on my Anxious attachment, It still is a massive learning curve. I did notice that my change in behaviour made him drop some of his defences, and actually make him more appreciative of me, as he was starting to feel less attacked and more understood.
One of my favourite things about the podcast, was actually learning to understand my partner a bit more, and trying to look at him with empathy instead of frustrations / blame. It's difficult because our attachment style is formed in childhood, so I tried to be way more empathetic of how he was treated as a child, and tried not to judge him because of it.
I got to the point where only me working on improving myself was not enough. I basically sat him down and said that I'd been listening to the podcast, and that I would like him to listen too, as it's something we both needed to learn. If he didn't want to then that's OK too, but if that was the case I was not longer prepared to keep hurting each other and would have to walk away to protect myself. Luckily for me he agreed to listen and we've been working at our communication, and have been practising empathy, appreciation and working as a team. The closer we grow together, the more natural the none sexual intimacy has become. We had to re-learn how to love and respect not just each other, but ourselves, which wasn't easy but I knew when I married him that he was my person, and I wanted us to be together in a mutually full filling relationship.
I really hope you can get through to him, and that you can become a team together. If not then at least you can learn about yourself, and hopefully your next relationship will be with someone who loves you, respects you, and doesn't judge you for being mature enough to talk about your needs, and desires in a relationship.
Sorry for the essay 😅This is a field I am particularly interested in so I have read so many books about relationships, attachment theory and love languages 😂