G (sorry to hijack your thread BD!), I think "f-off" is totally in order when there is another OW or OM involved. It's about self respect for the LBS and not acting OK with something that really is not OK.
Complication with baby on way (and if you already have kids), you have to communicate (civil, not friendly). And Detach. All at the same time. Yeah, brill!!!! NM knows first hand how hard that is.... Allen A says it can make you ill.
In hindsight, I wish I had done NC until after birth. I came out of dark too fast. A was not over. Should have let OW meet all H's needs while I drove him nuts wondering about me and the baby.
Sounds cruel, but may have been more effective.