Is AUTHOR wrong in the post ? POST : My ex husband and I were married for 10 years and divorced about 4 years ago. We have a 9 year old that we co-parent.

The issue is that he wants to friends and I don't. I'm always nice, exchange pleasantries but I don't get involved with his personal life, I don't ask because I don't care. When he asks about our kid, I respond and I keep in the loop on school, softball, etc. I don't hate him or anything, I just don't care. 

However, he calls me once a week and wants to talk, when I pick up our child, he wants to talk. He wants to talk about his life, his hobbies, his girlfriend, work, stuff you would talk to your friends about.The problem is that I don't care. I don't talk about my life to him at all, although he tries to pry. 

A friend recently told me that I was being rude and that I was responsible for being friends with him for the sake of our child.

I don't think I am. I feel like I'm not required to be friends with him. 

Seriously, AITA?