If he has new good sex with someone else & realizes he needs that in his life then that is what ought to happen. Relationships built on hiding inconvienient truths are not healthy. I'm seeing comments saying "if he isn't asking for it, he doesn't want it"; it sounds like he has communicated to you the new things he would like to try, and he is very mature for respecting your boundaries, but sex is like anything else in life in that we settle for what we can get but our imaginations always yearn for an ideal "fantasy". I'm definitely not saying that all husbands & wives deserve to act out every single fantasy they want, but this idea that because he's such a gentlemen that he wouldn't ASK his WIFE for outside sex is really delusional, it just means that his life with you in it is more important than him acting out his fantasies. It's possible that if you prompt him with the opportunity to act sexually with someone else he may not want to, but people in the comments saying "he doesn't want it if he's not asking for it" just plain don't understand how morbid reality can be, meaning men and women will ABSOLUTELY live an unfulfilled life with someone and be complacent in their dull life.