I don't think venting on FB is a good idea. People do it all the time, I've heard (I don't use FB)...but she could twist a weak argument about "stability" if custody is at issue, if you end up in court. It's stigma but I'd resist because it might be used against you. It's a weak argument but it could be made to build a case. Don't think she has one. Don't help her.

Also, living happily is the best revenge. That will take time, but you'll get there. xo