About 2 years ago after much complaing about the lack of sex my wife told me in no uncertain terms that sex was permanently off the table. She said she still loved me but her desire/passion has gone to zero. I found myself withdrawing completely. No hugs/cuddles or kisses. I seriously considered divorce but ruled it out because of my age and years together (70m, 66f. Married 35yrs).
My wife suffers from high BP and was taking 2 different meds. Although she was taking it for several years, she started experiencing syncope. Her doctor took her off one of the meds and all of a sudden she reverted back to her old self. She gets aroused with minimal effort! We've had more sex in the past month than we've had in the previous 3-4 years.
I just wanted to share in case anyone is suffering from a dead bedroom. Check your wife's meds. That may be the reason she lost interest.
PS. I know some will say maybe she's having an affair that awakened her sex drive. I'm thinking no way since we're together 97% of the time.