One of the biggest problems our generation has is our obsession with other people. We constantly want to know what people are doing, who they're doing it with, why they're doing it... you name it, and I can assure you someone is already working on figuring it out.
Why do we so desperately need to be all up in everyone's space?
We need to respect each other's privacy. If someone doesn't offer up the information to you, stop digging for it.
If they don't openly talk to you about something after you ask, let it go. Continuing to push someone to tell you about something they obviously don't want to talk to you about is obnoxious and childish. Focus on yourself and let it go.
If it doesn't involve you directly, or if the person has not come to you about it, it's probably none of your business. Obsessing over situations you can't control, have no involvement in, or have no influence over, is exhausting and will leave you feeling worse. Stop worrying so much about what other people are doing and start focusing on working towards your own happiness and wellbeing.
When you spend more time digging for gossip and drama than you do turning that attention inwards and bettering yourself, you end up cheating yourself out of the peace and happiness that you could otherwise find much more easily. Channelling negative things will leave you in a negative place, and this is what generally tends to happen when all you care about is finding the "dirt" on other people.
Trapping yourself in a cycle of gossip, rumors, and secrets-spilling will turn you into a source of toxicity, and you might not even realize it. People don't like spending time with others who only care about the drama. The only people who want that are people who are the same way, and the cycle just intensifies and worsens once you isolate yourself inside a group of people exactly like you.
Stop the habit in its tracks. Stop focusing so much time and energy on who's doing what and why it might cause problems. Live your life and let everyone else live theirs.
It's probably none of your business anyway.