i played the same card with my wife......no sex so I turn to porn

but one thing I realized is that sexual addiction is not about SEX
but core feelings of loneliness and unworthiness

I found my past history( molested as a child, parents divorce, fathers
sexual problems.) all contributed to me turning to porn for "instant gratification"

your husband may be hiding something or has fears of intimacy like myself

good book to read:
"Don't Call It Love" by Patrick Carnes Ph.D