IDK that you should be worrying about what your W wants any more!
This is someone who is choosing to cancel your lives together. I’m not sure that you should gives two sh*ts what she thinks.
I’m glad you went! You should do what Terapin wants.
Living in fear of what your WS/WAS might want/think/do/say is a terrible existence. You should relay this story about your grandma to your IC and work on minimising acting through fear.