This lady was an absent mother to her child and left him with the trauma of growing up without a protective/loving mother. He adapted and grew up accordingly. They have a very limited relationship now. She has no place shitting on his current relationship because she dislikes the way Mary treats him. This is some major dysfunctional projection.
Also, Brandan made some comment that he hopes Mary is nice to his mom and doesn’t trigger any sort of relapse. Mary should not have to walk on eggshells or put up with his mom’s nasty attitude because his mom has an addiction.
Also, her comments about the Phillipines and the poverty made her look like such an ignorant, arrogant American. I doubt she made an effort or took any interest to learn anything about the culture or language prior to her visit - even though her grandchild is from there.
I would cut her slack if she and Brandan were really close and/or she had been a supportive mother to him. But literally all she brings to the table in his life is negativity. She failed him as a mom, and now she seems to want Mary to let him down as well.
She was a bad mom in the past because she had an addiction. If she is cleaned up now, it would follow that she’s in a better place to be supportive of her son. She is right about how toxic Mary is.
Maybe they haven’t shown it, but I don’t get supportive vibes from her at all. They talk once a month at most. And it seems like all she wants to talk about is how horrible Mary is, instead of getting to know and building a relationship with her son.