LOL!
I actually read and write fantasy.....BTW.
And I have a good imagination.
Just a weird history, that's all.
Again, it isn't insecurity, it's simply focus and energy directed at someone else in a manner that isn't directed at you.
My thought to blame it on jealousy and insecurity is hardly a radical idea. :-)
I would suggest that a deeper look at *why* you are bothered by the fact that he'd focus some engergy at others, as long as he had plenty of that energy for you (and then some). In fact he'll have more of that energy for you than you'll want to receive. Y'see, that's the thing. Men want it more often than women. So either the man does without, or he goes it alone.
I've been faithfully married for over 20 years, for what it's worth. If it bothers his woman, a man should not do it. I agree with that.
But simply looking and imagining should *not* be considered threatening, or cheating. That is what a man does when his wife isn't in the mood that night.
In my opinion, of course.