Genuinely puzzled about this one.
I have some friends/acquaintances I don't see often. From time to time we'll text to update each other on our lives. All good.
But there's also the people who'll text, after months of not talking, 'hey, how's everything going?' so I'll reply with a bit of an update on my life, keeping it light, then ask 'how about you?', and all I get back is 'all good, thanks', and that's the end of the conversation.
I've just received such a text message from someone who does this. If I reply with an update I know I'll get nothing back. Yet replying with 'I'm fine thanks, you?' seems unfriendly.
Why do people do this???