Why does intimacy stop all of a sudden?

Ok me 46 f, him 51 m.. after 1 yr of dating and 8 months of sex. He asked me the other day “if physical contact is important to you?” This was out of the blue.. for context there has been no physical contact whatsoever so ever in over two weeks. No hand holding, kissing or hugging… absolutely nothing.. it just stopped. We work opposite shifts and live a hour apart. Only get to see each other on the weekends.. I’m so confused and looking for advice

Why does intimacy stop all of a sudden?
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