A quick drop-in. I loved your Houston analogy and I like what I'm hearing about MC. That's great.
On Retrouvaille, religion plays a role, but is less important than the program's initial efforts to build a positive emotional connection in a setting with similarly situtaed folks. You soon learn that you're not alone and also are led by happy couples that have stories that could be as worse as yours. Comfort in numbers I guess. The key is that your H MUST WANT to work on M. I went when my W was in full-blown EA and wanted to convince me to leave--an Rx for disaster. While MC could obviate the benefits of Retrouvaille, it's your call.
As an aside, I still may be in DC next week, but it's more likely to be Tues - Wed than Thursday. I'll zip you an e-mail when I know--which may not be until Monday. KOFTGF.