I would recommend "Passionate Marriage" to *anyone*. The Bible, and PM, digested together. Changed. My. Life.
From personal experience, I think you have to accept that, after an affair or *any kind* of sexual difficulty or distance, sex will be weird. It won't feel right. It may feel outright awful, distasteful, nauseating, uncomfortable. For the first time, or the first *several times*. I can't say, but I think it might have something to do with the overwhelming weight and importance of the relationship in question. Not to mention any unfortunate history. My husband and I have surely had our setbacks in this regard, and if for whatever reason, it's been awhile, we don't expect the first time back together to be awesome. We do, from experience, expect the next time after that to be better. Don't be afraid ......
"Show me a completely smooth operation and I'll show you someone who's covering mistakes. Real boats rock." -- Frank Herbert