Have you checked with them as to why? Did something serious happen or did they get diagnosed with depression? A switch that sudden is interesting have you asked mutual friends about it?
Yes, well, they just have a lot to do. They also say that nothing is wrong and that they are fine; they just want to talk less because silence is good, and they want to adopt this habit.
So you said they take it the wronge way when you are silent? Do you know why? Is it from insecurity like they think you don't like them anymore. I don't blame you for not wanting to speak much later if you have todo all this effort to get them to reply to you that sounds tiring
Yes, because they interpret my silence as meaning something is wrong. Either I've changed, or I'm simply setting boundaries. But the truth is, I'm often thinking about how to change their mood or talk to them.
I don't know how to react when I find that a close friend of mine, who usually behaves well, has told me he prefers silence now, which is fine, but we don't talk like we used to. I feel lonely most of the time. He only replies to my messages late, and I usually like to argue and laugh, but I've started talking a lot just to get them to talk because if I'm silent, they'll take it the wrong way.