Sometimes, I talk with a friend about stuff, and then if at any point I disagree on something, or perhaps correct, or add information to something he said, he tends to become defensive, and responds differently to things.
And rather than letting it go after a while, it tends to linger, and even when we are on a different subject, it seems he thinks I'm still trying to prove something from previously, while I want to move on and have a neutral conversation.
It goes something like this:
Me: I don't think x is that, because y
Friend: I thinks it's because z
Me: Yeah, z or y, whatever
Friend: No, really, I think z
Me: Yeah, that's a possibility
Me: I think x is [blablabla, different subject]
Friend: Yeah I don't know, I don't think y is involved
Me: (thinking I did not even mention y?)
Me: No... that's not the point I was making (is he even listening or still trying to prove he was right about z?)
I have this sometimes with other people too, and my feeling it has a lot to do with ego, and their unwillingness to let it go. Most times it is more apparent through their intonation.
Not sure if I've described the situations clearly enough, but it feels a lot like you are not having a mutual conversation but it turns into a discussion or debate, while I just want to talk about things and avoid polarization or right/wrong or only 2 possible, opposing answers to every question.
But, what can I do to change or avoid this?