I'm so sorry you're going through this.

I had a virtually sexless marriage for many, many years, and it turned my relationship toxic, and caused my wife and I terrible amounts of pain. It took a long time to us to figure out I was a type of asexual and had, and would never have, any real interest in sex with anyone. Asexuality is an outside possibility you might want to be aware of (the AVEN website helped me consider that side to me).

I humbly suggest that it's better to get it sorted as soon as possible, and if necessary consider ending the relationship - the pain of a sexless marriage isn't worth it, IMHO.