Most men like porn, and a lot of women as well (myself included)
Your man isn't looking at porn because he doesn't love you, or you aren't 'enough' for him. Men are just visual creatures and like visual stimulation. He was probably looking at porn before he went overseas, as well. Odds are he thought it would offend you, and never mentioned it.
As for the fooling around and going to strip clubs.. There is a big difference between a strip club and cheating on your wife

Again, its the visual thing.
Don't worry. Almost all men look at porn. The important thing is that he married *you*, not the bimbos in the pictures. Maybe when he gets back from overseas, you could try renting something together? It may help to change your outlook on it if you're enjoying it with him. Just a suggestion. Best of luck!