I wouldn't say it is "normal". From what I've read and heard from others who have gotten back together, is that most WAS are reluctant to talk about the A and OP unless the LBS brings it up. Most would rather sweep everything under the rug. But if this is how your H is able to deal with what happened and able to let go, then I don't think it's a bad thing. He's going to IC and is trying to deal with it all. Just calmly let him know that right now you can only handle hearing about OW for short periods of time.
Rocked, the way you described yourself and OW is exactly how I'd describe myself and my H's OW. Also, my H's OW was in her mid 20's and H was 45 at the time. I think all those things you mentioned about your H is was what attracted my H at the time. H's OW also suffered from depression and was very dysfunctional. What Hope4us was saying on another thread about the WAS affairing down is very true in most sitchs.
Me47 H46 S13 M16 Piecing since May/09
"Life is 10% what happens to us and 90% how we react to it." Lou Holtz