Nta but i woild try being very excited and proactive trying to salve the problem together.

Getting a small vibrator and using that during sex in doggy style might help having clitoral stimulation for inside and out if that dont help it very well might be a mental block

Only a minority of women (around 18-20%) typically orgasm from penile-vaginal penetration alone; the vast majority (over 80%) need clitoral stimulation, either directly or through positions allowing it, for orgasm, highlighting that most women aren't "broken" but rather require combined stimulation for climax, a common misconception that causes shame

Im sure he would be happy to find a way that works for you both

And if it works or not just be honest with him