Hi Dawn,
Either he watches porn openly in front of you or behind you, guy is always a guy. We watch porn regardless openly, or sneakily. Even thought some day you might convince him not to watch porn, he will still watch porn behind the scene. Guys that told you they never watch porn is completely a liar.
You will need to get rid of your girl’s logic in order to keep your crazy anxiety/insecurity under control;
if he watch porn, you will start to compare yourself with the porn actress, in other words, you’re jealous. We man are programmed to have emotionless sex. Our sex desire can easily be triggered by visual or appearance, unlike women, they are based on “feeling”.
So next time when you see your husband watch porn, it doesn’t mean they are attracted by the actress, the next moment they have sex with you, they already forgot what they have watched.
This is a good video for you for your reference. https://www.youtube.com/watch?v=dlZsGpWJmos
Cheers,
George