Sounds like your WW has hidden alot from you recently. He didn't pop out of nowhere. This has been going on for some time. She's been having an A with him and it probably is physical as well. Read up on this site. Learn about the concepts and learn what her ENs are.

Who knows about this? It needs to be exposed to the world.

DDay EA 4/05
DDay PA 6/05
In recovery