Internet .....?

Okay. So....my husband...who never wants much to do with , I caught on the computer looking at ographic photos of other women on myspace......also he was in 20 something and 30 something chat rooms, and....he was also in yahoo personals, looking at local women. He says he has never cheated, and wasn't looking to cheat.....but was just curious what was out there what single people his age look like because he has low self esteem. What hurts the most is the deception of it, and the fact that I can't help but feel like he was looking for someone or something else, but he is so closed off to me in general. I have never turned him down ually or otherwise........and feel as though I am a good wife who is completly devoted to his needs! So why!? I don't understand! Am I in denial? Am I missing something here?! I this something all guys do?!