In my case my H moved in with ow 2 weeks and 2 days after he re-met at her father's funeral home viewing. He had dated her in high school 40 years ago.
Exposure would have done nothing because it was already out there plain for the world to see. He left us and moved in with her and he didn't care who knew it.
When I found this site I came straight to the MLC section because I had determined during my research that that was what my H was going through. It was the only thing that explained his irrational behavior which was so opposite of who he had always been.
When I had heard the phrase that he was aboard the mothership, it fit perfectly.