Because we don't care for people's passivity and dramatics. https://twitter.com/sweetwineonly/status/1317674288254681088

As a Sagittarius, I am very transparent. I don't say I don't care when I do, and don't say I do care, when I don't cos we are the sign and element of action. You will know exactly where you stand with us at all times, so if I am showing you I don't care, it is because I don't.

And due to this nature, we appreciate those who are the exact same way. Show us you care, and show us when you don't. Everything is clear with us, so we like clarity back.
If you decide to stop talking to me, then it is clear for us that it is what you want. If you SPEAK on what

has upset you, we can actually resolve it and communicate. But I won't chase someone who is passive!

I also won't try to understand someone who is passive, because what better communication is there then to SPEAK CLEARLY to someone without all the xtra unnecessary dramatics. I speak English, you speak English, why we tryna communicate telepathically...