Are my feelings valid?!

So my husband has 2 children with his ex girlfriend they are both 7. Both of that have allergies one has them way worse than the other they are always sick with something. Well there county was strictly all virtual online learning and now it has switched to partial in person or giving the choice to continue doing all online.

Anywho, she texted my husband asking his opinion on the matter of letting them go back to school partially. She works and her other ex watches my husbands and her kids and he watches his that those two had together while she works.

My husband said it doesn’t matter to him whatever works best for her. He texted her saying that since my daughter goes in to do testing at her school they are at risk regardless. (she’s strictly all online at home) only goes in for testing every few weeks or months for a couple hours a day in a room with other online schooled kids they wear masks and are spread 6ft apart at desks.

What I’m asking is, do I have a right to be upset or angry with the fact that he didn’t talk to me about it as well before sending a response? Because not only does that affect them and obviously her other kid and ex. But it affects me and my daughter as well and my grandmother since I’m the one who takes her to her appointments?

I am civil with their mom and text her about the kids. I don’t like her parenting choices or style most of the time but I can’t change that since it’s not my place to. I don’t like getting mixed in with telling my husband how to parent or make choices for the twins because that’s not my place. But with covid this is a big deal to me. My dad and his gf just got over having covid and what he explained to me how he felt and everything scared me.