MichaelD:
You are missing the point. It is because sexuality is such a beautiful, pleasurable, intense, wonderful thing that monogamy is so essential.
There is no doubt that committed, long-term, monogamous relationships are a boon to society. If it is a boon to society, it is a boon to you as an individual, whether you have eyes to see that truth or not.
It is not a matter of choosing what is best for me over what is best for others. It is a matter of choosing what is best and reinforcing that choice again and again. Until you do this, you will not experience peace.
The more a person is at one with himself and inwardly undivided, the more varied and profound things does he understand, and that without effort (Thomas a Kempis, 1472 AD)
What I am getting at is this: sexuality is the most beautiful physical aspect of a human being. Hence, the choice to give that gift to one person and only one person is a powerful act that lays a foundation upon which genuine love can build over time.
Until someone with such a powerful sexual drive submits his sexuality to this higher ideal of love, that one will always feel conflict. Passion is not bad; but passion is meant to draw us out of ?Self? into the volitional commitment to ?Other.? When the volitional commitment to other endures long enough, then one sees that the false divide between what is good for ?Self? and what is good for ?Other? is a delusion. In this area, women are generally more sensitive then men. Though they cannot always explain it, many of them know intuitively that every time they share themselves with someone who is not committed to keeping that sacred secret between them alone, part of them dies. Men are usually (not always) more thick skulled in this area. If your act inflicts damage on another's heart, you are damaging yourself.
All delusions are destructive; the longer they go are actively enforced, the more destructive they become.
You are thirty-one? If something of these things doesn?t sink in by the time you are fifty-one, you may find life teaching you quite emphatically the law of diminishing returns.
Since your sex drive is so strong, what better way could you express love to your girlfriend than to place her above it and place your sex drive under her domain?
The gift is yours to give or squander.
To re-emphasize my point, I am not bashing your sex drive, or your love for beautiful women. I am not judging. If these words have offended you, then no doubt I have butchered in some measure what I am trying to say.