It's hard to fathom how incredibly immature and unrealistic you are. No one has that EVERYDAY with ANYBODY. Grow up and get real.
But if you want to experience great sexual satisfaction as much as possible do you know what you need to do? You need to become a Christian and get or stay married. That's not just what I believe or something I've made up, that's what the social science data says. Life is no bed of roses for anyone and boredom can set into any relationship, but the cheap, short-lived high of the new sexual partner is not the way to long term happiness.
Ever listen to love songs? Do you think that a bunch of fundamentalist pastors sit around and write that stuff? Do you? Hardly, right? But guess what the same stuff that they would write into love songs is in love songs. Devotion, undying love, exclusivity, pledges of fidelity etc. etc. So even if you take religion out of the equation, that seems to be the greatest desire of the human heart. If that's the case then it would make sense to follow that road and make decisions that contribute as much as possible to making those things a reality. Is it going to happen for everybody? No, unfortunately not. Life is hard and for some people it's very hard. But that still doesn't give one a free pass to cheat on one's spouse.
Some of you people will probably never believe me, but the facts, to the extent they can be known are on my side. The answer really is Christianity. My heart goes out to Libs and to GG. They are horribly mistreated by their spouses. It's an absolute shame and if their spouses were trying to live as a Christian spouse then they would be trying to do what they could within reason to please Libs and GG, sexually as well as every other way. That's what makes the Christian concept of marriage so great.