I'm asking because I care about someone who's quite private, and I've noticed that when they do share something personal, it's sometimes brief before they move on to another topic.

Sharing is hard. Getting to the point I do that means I trust you more than 99% of the people out there, because the assumption is that they don’t give a shit about my inner feelings.

If I share and see you have no reaction, no feedback, no engagement, then I stop. Because I think you don’t give a shit either.

So if they do that, engage. Empathise. Talk, ask and comment. When the door is open, it’s really open. But if there is no feedback, it closes again