I don’t know what to make of this situation

I’m a 40 year old man married for 15 years. We have a 12 year old kid. I’m fit and trim, I climb mountains, run half marathons and take very good care of myself. I cook, help with household chores and try to be a good father to my kid. On top of that I’m very successful in my professional life and I’m a top earner.

Despite all of these, we never have regular sex. The last time we had it was 2 months ago. She never initiates and the “clothed” sex we have is honestly humiliating to me. No kisses, no affection, just poke my hole and cum fast because it hurts. I’m sure she hasn’t even cum in ages. Any discussion of sex turns into calling me a sex maniac and more tantrums. She has absolutely no interest in having sex if I don’t initiate.

I have lots of resentment due to this and I’m at wits end at what to do. I regularly get attention from women outside so I don’t think I’m a bum. Talking to her about this is a nightmare because she isn’t interested in improving anything and sex is a chore. She even told me she would be happy if we never have to do sex again.

Don’t get me wrong, she is a great mom and great partner apart from this part, but it feels like we’re in a platonic roommate situation just raising the kid.

Does anyone know if there’s a way to fix this?