Mil rant

So my mil are just cordial and respectful. Its not Jerry springer when we see eachother. We just have had our differences and whenever I try, she just is the way she is and becomes passive. So I just try to be as cordial as I can. Anyways, my husband went to the er and instead of calling me because she was worried, she asked her daughter to do so. Now knowing her I will say, I belive she did this so everyone can see that she's afraid to talk to me because I am the one with the issue and not her. Not saying that I feel she has been rude to me. But I have tried to speak with her about our differences with respect and she did not like it. So should I let her know that she can text or call me if she has any questions or should I just have her just continue doing what she does?

*my husband is ok and will get better in a couple of days. The reason they were concerned is because they wanted to know what medication they gave him. But I got his medicine and is sleeping. I just wanted to vent since I have noone to talk to about things and needed advice.