LL - I've read through what has happened in the past day or so. It has brought back some bad memories for me - and given me some reinforcement as to my W's state of mind when she discovered what I did back in January of 2002.
First, please let me give you a hug. ((((((((((LL))))))))))
Second - do you know how long this has been going on? The reason I ask is that depending on how your internet browser is set up, it can keep track of visited sites for a very long time. If this behavior of H's is recent, then it is an extremely serious problem. If the history shows that it has been a very long time since he's called those sites up and has not done it recently, it still is an area of concern. As I told my C at one of my recent sessions, I consider myself "held in check" but not in any way fully cured - if you want to call it that. I'm very mindful of the stressors that led me to it in the first place and if I keep that in mind, then I'm not at all likely to go down that road again.
Even if you do decide to take a much needed breather from the BB (and we all would miss you, BTW), this is something that your H must address in therapy - whether by himself or with you there. I truly hope that he will go of his own volition - it has helped me a great deal.