You know, admittedly, out of curiosity I've received these e-mails and clicked on them. What happens is when one is clicked, the browser starts spawning new browser windows with different URLs (sites). When trying to close the windows, more sites continue to spawn themselves...so it's very likely he clicked on one thing and all he!! broke loose (which is what happened to me)!
So, perhaps cut him a little slack. I do think, however, it would be helpful to talk to him about how frustrating it is for you to find out he's been looking at this stuff when your sex life is less than satisfactory.
He did, in fact, tell you some very nice things over the phone, LL.