Hi I've read DR a couple times now and wonder where or if to start.

WAW has been having an open PA for 3.5 years. We built an addition so
that each of us would have our own space. Kind of like moving out. She
sees us as separated, and in a monogamous relationship with OM. We
three do a fair amount together. She is also my business partner. I'd
like to have a primary sexualloving relationship. I currently have a low
intensity LDR with a woman in an open R, actually a poly W.

I'd characterize our R as friendly, occasionally our conflict over
the lack of a sexual gets discussed. I recently brought up getting
divorced as a way for me to move on with a new R, not an ultimatum. She was very pragmatic in her response.
An act that seems really hard for me to consider, a two choice dilemma.

I'd probably try LRT except that I probably wouldn't be able to pull
it off, due to my lack of other social support.