You’re not alone in this, as my wife likes to “check,” on her ex’s every now and then on the computer too, and every so often they’ll try and contact her. I firmly believe that these websites such as MYSpace, and some of the other ones have caused more hard feelings than they are worth, and they are almost like an online night club. You never know where an old GF/BF might show up. Your concerns are valid, and it sounds like a very serious conversation is in order, because you are having a hard time trusting him? I mean, you say he’d never cheat on you, and if you believed that 100%, then why would you care who the heck he’s taking too, or what website he’s on right? You sound insecure, and with your husband surfing dating sites you should be. A marriage with people hiding things is bound to fail eventually, so sit him down and have a brutal honest chat about it. Get it all in the open without yelling at each other, and work out a compromise. A married man has no business on a dating website, and if he’s emailing ex’s behind your back, I would throw the flag, and call a penalty. There could be a million reasons why he’s doing this, so find out the truth.