Loss of sexual desire

My wife and I have been married 30 years. In the past 6 years I can count the number of times we have been intimate on one hand. I adore my wife and still find her very attractive. Actually she is but she thinks she isn't. She has gone through menapause already but refuses to have sex. I have tried everything romantic evenings, changed my lifestyle. I am considered somewhat handsome, never a complaint on performance, I cater to her every wish. I do not want to cheat on her but it is coming to it. A woman I work with has made suggestive comments and she is starting to get to me. What can I do is there a drug or does she need help?

Discuss this problem with your wife and ask her what she thinks you should do.