Hi izzybusy,

I can relate. I was with my exBPD for several years and she quickly attached herself to another man and left our marriage. She refused to talk to me on the phone or in person her reasoning was that there are 100 different ways to communicate other than talk.
I think that she may regret that choice today because I keep all of our communication strictly via email to keep track of our conversations in case I need for court sometime in the future. A pwBPD feel a lot of shame, guilt, low self worth and she has to be carrying a lot of shame for cheating on her husband and having a marriage fail. It's less emotional, detached to speak to each by email.
She's called for non emergencies but I refused to pick the phone and let the calls go to voicemail then if it's valid I'll correspond back by email, that's my boundary. It's upset her a couple of times that I won't pick up, it's sad that things got this way but I believe that it is more important to keep things business like and keep track of things in black, instead of he said she said.
Regards,
Mutt