It's not advice. It reads to me that the friend is lacking the framework to express that the conversation the author just involved them in made them uncomfortable.

Like there is so much detail missing here: was this within the bounds of established conversation the author has with this person, was it contextually appropriate? Does the friend ever relate similar experiences back and this reaction was surprise?

> Back and forth, back and forth, we fought like this for a while. In fact, it ended the friendship.

Seriously there's a ton of missing context here.