L.M.
Akward position to be in, but I would assume that she is upset with your husband. Allow her to reject or accept your daughter herself. I would continue to visit her if she hasn't done nothing to me and we still get alone. Let your husband and her battle out their issues while you still continue to talk with her and both allow your daughter to have a relationship with her grandmother.
I would tell grandma that she is responsible for talking with her granddaughter because she did blow up in front of her. She needs to explain to her that she still wants her in her life and that what happened does not concern her. I wouldn't take any of that burden.
Be Blessed