MIL knowingly tried to cause strife between SO and me for the first time that I can recall

We recently decided to hold a boundary for my husband’s family: get vaccinated or commit to wearing masks in public.

They’re insane Trumpers, and my SO and I are not about it. I love my MIL to pieces. I saw her as more of a mother figure than my own mom. I can handle not having the same political opinions. What I cannot handle is what she did today via text:

MIL to SO: I need to see the grandkids SO: Are you vaccinated? … No response. Three minutes later:

MIL to me: I need to see the grandkids.

I didn’t respond since SO and I were in the same room. He takes charge on issues with his family, though we are united on all issues. He sent her a response about there being no pediatric ICU beds (DFW, Texas), and that she can video with them any time since we homeschool.

This behavior is so ridiculous. And on the surface it seemed childish, but the more I thought about it, the more I realized that she was fishing for me to say yes after SO said no, which would have caused an argument if we weren’t on the same page about it.

I’m grateful for the relationship I have with my husband and his willingness to stick to his principles. I’m disappointed that MIL would behave so childishly in response to a boundary.