Sorry if this sounds completely pathetic, but I'm sitting on the floor of my new flat crying into an unpacked moving box. I spent months building up the guts to invite our close mutual friend over to finally tell them I have feelings for them. Ten minutes ago, my sibling posted in our family group chat: 'Guess who's officially dating?' with a selfie of them making out on a couch. I feel physically sick, furious, and terribly guilty for being jealous of my own sibling. What on earth do I do now?

First, take a breath and put down the unpacking tape: you are not a terrible person, you just took an emotional right hook to the jaw with zero warning. Finding out your crush is dating someone else hurts. Finding out via a casual family group selfie while surrounded by cardboard boxes is Shakespearean-level bad timing. That nauseating mix of jealousy and guilt isn't evil; it's basic human grief for a fantasy that crashed before take-off. Right now, your sibling isn't doing this to spite you—they simply had no idea. Rule number one tonight: close the group chat and mute it. Do not send a loaded 'Congrats...' or a passive-aggressive passive-emoji reaction from the floor of your kitchen. Your job tonight is pure survival, not dramatic confessions. When your stomach settles in a couple of days, tell your sibling privately: 'Hey, I'm happy for you two, but I had a bit of a crush there myself, so I just need a little space before we do double-date movie nights.' It clears the air, sets a boundary, and keeps you from exploding at Sunday dinner. Order the expensive takeout tonight. Your living room floor has seen enough drama for day one.