Where is the line between a friend being nosy and not? Am I in the wrong?

Let me start by saying I’m not the type of woman to have a lot of female friends. I don’t hold a lot of people really close. My friends and family know I have a super busy life with volunteering and working and it’s been like this for at least 15 years.
I have 16 year old twins who have been going to my friend’s house on a regular basis for many years. They call her Aunt. Her and I had been friends since childhood but that seems to be over now. My one son ended up telling Aunt that he was having unprotected sex. When she told him that he needs to tell his parents or she would, he texted his GF that he wanted to kill Aunt. She found this out and called and texted their dad and I about everything. She said he was not welcome at her house anymore. And that means, pretty much, the other twin too. We took this very seriously. When she told me, we pulled him out of school, got him in counseling, and took the necessary steps we needed to. When things calmed down, I texted her thanking her for telling me and told her I wasn’t mad or anything. She kinda asked how twin was, then she requested to see me in person. We both know our schedules don’t line up and lately we hadn’t been getting along because of personal relationship choices I was making that she didn’t agree with (not really her business and a reason why I won’t open up to her again). I told her that my child is in therapy but never anything about meeting up. Which brings me to today.

Aunt texted me asking how Twin was doing in therapy. I answered that he’s in therapy but I don’t really know past that. She responded with, “okay then, see ya”. I told her I don’t know what she wants me to say, I don’t sit in on his private sessions. Then she said, “I asked to see you and you never responded so, see ya” I responded telling her that we’ve been dealing with a personal crisis and while I appreciate that she had a part in it, it’s a family matter that I am taking care of with my children. I reminded her that she is Aunt so she got to give them back and say never again, and that’s the beauty of being the Aunt, that she gets to duck out if she can’t handle it. So, see ya.

I just don’t get why she thinks I owe her something. Like, if I don’t do what she wants and meet with her we can’t be friends. Idk. I’m beginning to think she’s been a narcissist this whole time and I’ve just been blind to it. She said she didn’t want my son anymore, so why do I owe her a date? Am I wrong?