I wouldn't expect any support from that front.
If she supports you in what your doing she has to take a look at her own life/actions over the years.
Besides...you can use this as reinforcement when your feeling weak and want him back.. or that he needs you....and trust me those moments, fleeting as they can be do come. But..he has a cheering section who will support all his delusions and wacked out thinking.
Just don't answer anymore. You can't change her either.