Please help, my husband of 7 years caught me busy masturbating

I have been married for about 7 years and we both love each other extremely.

But there are times when I feel an irresistible urge of having sex and my husband is not around so I masturbate.

Sometimes, I prefer masturbation than having sex. But one day I reached home early and felt an urge to masturbate.

While I was in action, my husband stepped in early from office and caught me in the middle of the act.

I thought it might be provocative for men but my husband was disgusted.

Our sex life has slowed down since then and I feel guilty facing him. What should I do?