Re: Any opinions or advice?
I'm sure while you feel you have a fantastic love life, for just about any guy they want more. It is just a fact of nature, that they are designed to be constantly looking for the best breeding partner they can find. Looking at p 0 r n be it movies or pics is really the safest way for them to do this in our current society -and a lot of guys do just look, it is simply curiosity about what other people do, how other people look and act.
I can definately understand how you feel in relation to insecurity, as I was in the same position for a long time. But the fact really is the guys generally wont be comparing those girls to you. These girls represent fantasy, a simple release when it is required.
I really agree with some of the oter messages that say for you to let it go, if he wants to do then let him, just make sure he accurately understands your objections and how it is affecting you. Sit down and discuss with him actually what he is getting out of it and why he does it. That may help you understand his perspective as well. As I am sure he isn't doing it with the intension of hurting you.
The best thing I have found for issues like this in the 7 years I've been with my partner is to talk, talk, and talk some more until you both cleary understand where you are both situated and the best way to move forward for a productive and happy relationship.
All the best.