My mom taught me this lesson when I was maybe seven. I was going on about something I found interesting and after a few minutes she cut in: "Did you notice how I haven't been responding at all?"
"Yeah?"
"That means I don't care. I don't care about this topic. I'm bored. I don't want to hear about this. When you talk to people, pay attention to whether or not they're responding to you. If they barely have anything to say, stop talking about whatever you're talking about."
It was a good lesson. One that many people need but never got. And it shows.
nothing will ruin a friendship for me faster than watching someone show up for their other friends in a way they don’t show up for me. you have the capacity, just not for our friendship? no thanks.