Opinion on a "friend"?

I was friends with this woman, but after a disagreement about me telling her getting a second opinion for her child condition she got mad at me. After her not calling me for about a month or so I called her because our children are friends and I was concerned about her and the kids. I asked herpoint blank was she still mad, she claims see never was. Haven't talked to her since. Mind you we talked 2-3 times a week.

The argument was about a doctor operating on her child's and the doctor she took here child to happens to be the same doctor.my child goes to for a problem be had. She asked me what I thought and I told no one is cutting on my child without second opinion first. She got mad because I told there is no way she going to tell me that he's the only doctor who does this type of surgery. We have the same insurance and I knew he wasn't. Don't get me wrong he's a great doctor, but if its my child I'm checking all avenue unless time does not permit it.