Hey Heartbroken ....
Maybe this is slightly off the subject, but I am a firm believer in it being a mistake for two people (under circumstances like you've described) to stay together for the childrens sake. It doesn't work. Kids aren't stupid. Kids living in and growing up in a hostile environment is not good.
I don't think that statement helped you any ....... but I needed to say it. Well, maybe it did affirm some of what you said.
Should a divorce ultimately happen, that opens up a whole new group of potential problems. I'm the product of a divorce ... and was raised by my Stepfather and Mother ... but my natural Father remained in the picture - and he re-married later. All things considered, I was very lucky. I never felt like the pawn that was being used between two divorced people. Many are not that lucky.
Again, I wish you the best. Counseling, again, makes a great deal of sense for you ... and yourself!
Rob